TOP 30 Cruise offers in Tampa, Florida
62 results found
Search for local businesses, places and services near you
- United States
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
- Ukraine
- Italy
- Poland
- Germany
-
Go Tiki Tours Clearwater - #1 Floating Tiki Boat
● OpenLocated at 455 East Shore Drive in Clearwater, Florida, Go Tiki Tours is the #1 Floating Tiki Boat attraction in the area. With the capacity to accommodate up to 13 passengers, our private tiki boat tours are perfect for groups looking to explore the waters in style. For larger groups, we offer the option to hire a USCG-Qualified Captain separately to ensure a safe and enjoyable experience. Our public boat tours, which can hold up to 6 passengers, include a USCG-Qualified Captain onboard to guide you through the beautiful routes of Tampa's Downtown Riverwalk and Clearwater Beach. What sets us apart is that we are the only Tiki Boat with a Bathroom on board, allowing for longer trips and added convenience for our customers.
455 E Shore Dr, Clearwater Beach, FL 33767, United States -
CRUZ'N AMI
● OpenCRUZ'N AMI is a travel agency located at 200 Bridge Street in Bradenton Beach, Florida, United States. Experience the wonders of Anna Maria Island with a variety of excursions offered by CRUZ'N AMI. From day cruises to snorkeling adventures, sunset cruises, jet-ski rides, and more, there is something for everyone to enjoy. Our experienced guides will take you to the best spots for snorkeling and dolphin watching, providing unforgettable experiences in the waters of Anna Maria Island, Longboat Key, and Tampa Bay. Relax on our floating lily pad or hold on tight as you ride our recreational tube through the beautiful waters. For those seeking an adrenaline rush, our SeaDoo GTR Supercharged jet-ski will provide an exhilarating experience. Book a sunset cruise with our knowledgeable captains and enjoy a breathtaking view as the sun sets over the water. Contact CRUZ'N AMI today to book your next adventure on Anna Maria Island. Email info@cruznami.com or fishannamariaisland@gmail.com, or call 941-264-5081 for more information.
200 Bridge St, Bradenton Beach, FL 34217, United States -
Vacacionar Travel
● ClosedVacacionar Travel is a premier travel agency located at 6821 West Hillsborough Avenue in Tampa, Florida. Our agency specializes in creating unforgettable vacation experiences for our clients, offering a wide range of travel services including booking flights, hotels, cruises, and vacation packages. Our team of experienced travel experts are dedicated to providing exceptional customer service and personalized travel itineraries to ensure that each client's vacation is truly one-of-a-kind. Whether you're looking to relax on a tropical beach, explore a vibrant city, or embark on an adventure-filled journey, Vacacionar Travel has the expertise and resources to make your travel dreams a reality. Contact us today to start planning your next unforgettable vacation!
6821 W Hillsborough Ave #4, Tampa, FL 33634, United States -
Wholesale Destinations
● ClosedWholesale Destinations is a premier travel agency located at 3030 North Rocky Point Drive in Tampa, Florida. As a leading provider of travel services, Wholesale Destinations offers a wide range of vacation packages, cruises, and tours to destinations around the world. With a team of experienced travel experts, customers can expect personalized service and expert advice to help plan the perfect getaway. Whether you're looking for a relaxing beach vacation, an adventurous safari, or a romantic European getaway, Wholesale Destinations has the expertise to make your travel dreams a reality. Visit us today and let us help you plan your next unforgettable vacation.
3030 N Rocky Point Dr #151b, Tampa, FL 33607, United States -
Live Love Vacations
● OpenLive Love Vacations is a premier travel agency located at 12553 Bassbrook Lane, Tampa, Florida, United States. We specialize in creating unforgettable travel experiences for our clients, offering a wide range of vacation packages tailored to suit every taste and budget. Our team of experienced travel experts is dedicated to providing exceptional customer service and ensuring that every detail of your trip is taken care of. Whether you're looking for a relaxing beach getaway, an adventurous outdoor excursion, or a luxurious cruise, Live Love Vacations has you covered. Let us help you plan your dream vacation and make memories that will last a lifetime.
12553 Bassbrook Ln, Tampa, FL 33626, United States -
St. Pete Sailing Charters
● OpenSt. Pete Sailing Charters is a locally owned institution offering Day Sails and Sunset Cruises in Tampa Bay. Located at 1110 3rd Street South in St. Petersburg, Florida, United States, the institution specializes in Sailboat Photoshoots, Sailboat Proposals, and Onboard Weddings. Owners Nick and Kelly, who have sailed and explored the Caribbean Islands, operate the Morgan 44 foot Sailboat, Satori. This classic Florida-built yacht provides guests with privacy, comfort, and safety, making it a popular choice for special occasions and custom departures. The institution also offers services such as Sailboat Photography shoots, Express Photoshoots, and Ultimate Sailboat Proposal Packages. With a focus on quality and customer satisfaction, St. Pete Sailing Charters ensures a memorable and enjoyable experience on the water.
1110 3rd St S, St. Petersburg, FL 33701, United States -
Tierra Verde Boat Rentals
● OpenTierra Verde Boat Rentals is a top choice for boat and jet ski rentals in St. Petersburg, Florida. Since 1994, we have been providing quality water sports rentals for visitors and locals alike. Our 24' Deckboat is perfect for leisurely cruises, water sports, and more. We also offer smaller boats for fishing trips and couples looking to explore the water. Our center console is ideal for fishing enthusiasts. Located in Tierra Verde near St. Petersburg and St. Pete Beach, we are easily accessible from Tampa and Orlando. Explore beautiful landmarks like Egmont Key and the Sunshine Skyway Bridge with our boat rentals. Our customers rave about their experiences, from wakeboarding to tubing, and the convenience of our Bluetooth-connected boat stereo. Whether you're a local or a tourist, Tierra Verde Boat Rentals is the perfect choice for your Florida vacation.
100 Pinellas Bayway S, St. Petersburg, FL 33715, United States -
Maria Anderson Travel
● ClosedMaria Anderson Travel is a renowned travel agency located at 8801 West Patterson Street, Tampa, Florida, United States. With over 2,500 passengers from all over the world having traveled with our services, we offer a wide range of travel options including flights, cruises, trains, and buses. Our experienced team has taken our clients to over 100 different destinations across all continents, with more than 50 loyal customers returning to our multi-destination tours every year. Having flown over one and a half million kilometers around the world with our clients, we are dedicated to providing the best travel options for your journey. Contact us at 1 (813) 842-0268 or email maria@multi-services.online to speak with an expert who will help you find the perfect travel package. Stay updated on the latest travel tips, conditions, recommendations, and ideas for your next trip. Take advantage of our installment payment options with your credit cards. All rights reserved to Multiservices LLC - Maria Anderson Travel, a registered trademark. Website designed and built by People & Business Solutions Group - www.pbusiness.cl.
8801 W Patterson St, Tampa, FL 33615, United States -
Y&Y Travel and shipping llc
● OpenY&Y Travel and Shipping LLC is a reputable travel agency located at 7201 Five Point Circle in Tampa, Florida. With a focus on providing top-notch travel services, our agency offers a wide range of options for all your travel needs. Whether you're looking to book a flight, hotel accommodations, or plan a cruise, our experienced team is here to help you every step of the way. In addition to travel services, we also offer shipping services to help you send packages and goods to your desired destination. Trust Y&Y Travel and Shipping LLC to make your travel experience smooth and stress-free.
7201 Five Point Cir, Tampa, FL 33634, United States -
Wanderlust Coastal Creations
● OpenWanderlust Coastal Creations is a clothing store and tourist attraction located at 812 Blue Heron Boulevard in Ruskin, Florida. Our captain, K- Neil, offers charter services including island hopping, sunset cruises, fishing, sightseeing, and dock & dine. With years of experience and a passion for boating, he knows how to show you a great time on the water. Our 26-foot SeaHunt Center Console boat is perfect for couples, families, and groups of friends looking to enjoy a private day on the water. Our shop offers UV shirts, hats, reusable tumblers, SPF lotions, and more. Tipping is not mandatory but is appreciated. Come explore the Tampa Bay waterways with us and make unforgettable memories! Contact us at (727)248-3365 for more information. #TampaBayBoatCharters #RuskinBoatCharters #DockAndDine #FishingInshoreOffshore #IslandHopping #PartyOnTheWater #BoatLife #ExploreTampaBayWaterways #SunsetCruiseTampaBay #WaterAdventuresTampaBay #ThingsToDoInTampaBay #SupportSmallBusinesses
812 Blue Heron Blvd, Ruskin, FL 33570, United States -
La Caribena Travel
● ClosedLa Caribena Travel is a travel agency located at 937 Southwest 87th Avenue, Miami, Florida, United States. We offer departures from Fort Lauderdale, Tampa, and Miami aboard Celebrity cruises. Book your vacation with us now and take advantage of our special prices for travel agencies renting vehicles. We have a variety of luxury SUVs, 4x4 Jeeps, RVs, scooters, and economy automatic cars available for immediate confirmation. We also provide immigration services for individuals of any nationality wishing to travel to the USA. Our founder and president is a notary and immigration specialist, while our CEO is also an immigration specialist and travel agent. Serving the poor is like lending to the Lord; God will repay for those good deeds. Proverbs 19:17.
937 SW 87th Ave, Miami, FL 33174, United States -
Rock and Reef Charters
● OpenRock and Reef Charters is a family-owned travel agency located at 100 Dodecanese Boulevard in Tarpon Springs, Florida. We offer private island charter boat tours on a water slide boat to Anclote Key and Three Rooker Island. Our trips are perfect for birthdays, graduations, bachelor and bachelorette parties, anniversaries, and more. Captain Jonathan, a Licensed Master Captain, will guide you on your adventure as you cruise along the Anclote River to the sandy island beaches. With years of experience exploring the local waters, Captain Jonathan is knowledgeable and informative. He is also certified in First Aid AED and a Certified Rescue Diver.
100 Dodecanese Blvd, Tarpon Springs, FL 34689, United States -
Multiservices LLC
● ClosedMultiservices LLC is a travel agency located at 8801 West Patterson Street, Tampa, Florida, United States. With over 2,500 passengers from all over the world having traveled with our services, we offer travel options by plane, cruise, train, and bus. Our clients have been taken to over 100 different destinations on all continents, with more than 50 loyal fans who travel on our multi-destination tours every year. We have traveled over one and a half million kilometers with our clients, exploring the world together. Our team of experts will help you find the best options for your trip, keeping you informed of the latest travel data, conditions, recommendations, and ideas. You can also choose to pay for your travels in installments using your credit cards. All rights reserved to Multiservices LLC - Viajes Maria Aderson, a registered trademark. For more information, contact us at 1 (813) 842-0268 or email maria@multi-services.online. Visit our website designed and built by People & Business Solutions Group at www.pbusiness.cl.
8801 W Patterson St, Tampa, FL 33615, United States -
Nordic Fishing Charters & Excursions
● OpenNordic Fishing Charters & Excursions is a premier fishing and sightseeing institution located at 1119 Baillies Bluff Road in Holiday, Florida, United States. Our trips offer the opportunity to catch trophy fish or explore the beautiful views in Tarpon Springs. We cater to various locations including Clearwater, Tampa, St. Pete, Tarpon Springs, and Weeki Wachee, and target species such as Redfish, Snook, Trout, Black Drum, Mangrove Snapper, and Tarpon. Our experienced guide, Captain Joshua Guy "The Nauti Viking," will ensure that your fishing or sightseeing trip is tailored to your preferences and experience level. Whether you want to fish, snorkel, or enjoy a family cruise, we guarantee an adventure to remember along the Gulf of Mexico year-round. A valid Florida fishing license is included in the trip for your convenience.
1119 Baillies Bluff Road, Holiday, FL 34691, United States -
Margaritaville at Sea
● OpenLocated at 1 East 11th Street in Riviera Beach, Florida, Margaritaville at Sea is a unique tourist attraction offering an off-shore resort experience like no other. Sailing from Palm Beach and Tampa to destinations such as Grand Bahama Island, Mexico, and Key West, this floating island vacation is the perfect getaway for those looking to unwind and soak up the sun. With endless activities, entertainment, and relaxation options, Margaritaville at Sea invites you to climb aboard for nonstop fun where it's always 5 o'clock at sea. From delectable food to live music and shows, there's never a dull moment on this cruise experience.
1 E 11th St, Riviera Beach, FL 33404, United States -
TampaBayEcoCharters.com
● OpenTampaBayEcoCharters.com is a premier eco-friendly charter service located at 5146 Beach Dr SE #F, St. Petersburg, FL 33705, United States. Specializing in offering unforgettable experiences on the pristine waters of Tampa Bay, our charters are designed to provide both adventure and education. Whether you're interested in dolphin watching, birding, fishing, or simply enjoying a serene sunset cruise, our knowledgeable and friendly guides ensure a memorable outing. We pride ourselves on promoting environmental awareness and sustainability, making every effort to protect the beautiful marine ecosystem we explore. Perfect for families, couples, and solo adventurers alike, TampaBayEcoCharters.com is your gateway to discovering the natural wonders of the Gulf Coast in an eco-conscious manner. Book your charter today and embark on a journey that combines fun, relaxation, and respect for nature.
5146 Beach Dr SE #F, St. Petersburg, FL 33705, United States -
John's Pass
● OpenWelcome to John's Pass, a charming and vibrant destination located at 12800 Village Boulevard, Madeira Beach, Florida. Nestled along the waterfront, this historic turn-of-the-century fishing village is Pinellas County’s #1 tourist attraction. Experience the magic of "Palm Trees ~ Tropical Breeze ~ Salty Air ~ Sunkissed Hair ~ Not A Care ~ Take Me There" as you explore everything John's Pass has to offer. With over one hundred unique merchants, John's Pass is a bustling hub of activity. Discover delightful retail shops offering one-of-a-kind treasures and indulge in a wide variety of dining options to satisfy every palate. Whether you're looking for a casual bite or a gourmet experience, our restaurants provide a taste of local flavors and international cuisine.
12800 Village Boulevard, Madeira Beach, Florida 33708, United States -
Skybar St. Pete
● OpenWelcome to Skybar St. Pete, the ultimate destination for dreamers, creatives, and doers seeking a vibrant and relaxing escape. Nestled at 6800 Sunshine Skyway Lane South in St. Petersburg, Florida, our bar is part of the eclectic and timelessly cool SkyBeach Hotel & Marina. Just minutes from downtown yet worlds away from the ordinary, Skybar offers a unique blend of good times and great vibes. Our serene location, far removed from the bustling pace of St. Pete Beach, provides the perfect backdrop for unwinding under the shade of majestic banyan trees. Whether you're exploring the water by boat, paddleboard, or kayak, or simply trading tales over expertly crafted cocktails as the sun sets, Skybar is your haven for memorable moments.
6800 Sunshine Skyway Lane South, St. Petersburg, Florida 33711, United States -
Float Boat Rentals
● OpenWelcome to Float Boat Rentals! Located at 22 Island Way, Clearwater, FL 33767, Float Boat Rentals is your premier destination for an unforgettable boating experience on the stunning waters of Clearwater Beach and Tampa Bay. Proudly voted the best boat rentals for four consecutive years (2021-2024), we offer an exceptional fleet and unmatched service to ensure your day on the water is nothing short of spectacular.
22 Island Way, Clearwater, Florida 33767, United States -
Clearwater Toyota
● OpenWelcome to Clearwater Toyota, your premier destination for all things Toyota in Clearwater, Florida. Conveniently located at 21799 US Highway 19 North, Clearwater, FL 33765, our dealership is dedicated to providing an exceptional car buying experience. Whether you're looking to buy or lease, our friendly staff is here to assist you every step of the way, ensuring you find the best rates and options that suit your needs. At Clearwater Toyota, we pride ourselves on offering a transparent, upfront Sonic Price and a warm, welcoming environment where the customer is always in the driver's seat. Explore one of the largest selections of new Toyota cars, trucks, and SUVs, along with an impressive inventory of quality used vehicles in the greater Pinellas County and Tampa-St. Petersburg regions.
21799 US Highway 19 North, Clearwater, Florida 33765, United States -
Sharp Exotics
● OpenWelcome to Sharp Exotics, the premier destination for luxury and exotic car rentals in Tampa Bay, Florida, and Omaha, Nebraska. Located at 333 3rd Avenue North, St. Petersburg, Florida, we are dedicated to providing the ultimate driving experience for car enthusiasts and adventure seekers alike. Our exclusive fleet of high-end vehicles is curated to elevate your journey, whether you're cruising the stunning beaches of St. Pete and Clearwater or exploring the bustling streets of Tampa and Sarasota. At Sharp Exotics, customer satisfaction is our top priority. Our commitment to quality service ensures that your rental experience is seamless and unforgettable. We offer a wide range of exotic cars that cater to your every desire, making your dream of driving a luxury vehicle a reality. From the moment you step into one of our cars, you’ll embark on an extraordinary journey that’s sure to leave a lasting impression.
333 3rd Avenue North, St. Petersburg, Florida 33701, United States -
Ships Ahoy Charter
● OpenWelcome to Ships Ahoy Charter, your premier destination for luxury yacht experiences in the Tampa Bay Area! Located at 225 13th Avenue South, St. Petersburg, Florida, we offer a stunning 80-foot yacht, perfect for creating unforgettable memories on the water. Whether you're planning a special event, a romantic getaway, or a fun day out with friends, Ships Ahoy Charter has something for everyone. Our Offerings:
225 13th Avenue South, St. Petersburg, Florida 33701, United States -
Clearwater Beach Jet Ski Tours
● OpenWelcome to Clearwater Beach Jet Ski Tours, your premier destination for thrilling water adventures in the heart of Clearwater, Florida! Nestled at the beautiful Barefoot Bay Resort and Marina, 401 East Shore Drive, we offer expertly guided Jet Ski tours that promise excitement for the entire family. Experience the Gulf's warm, crystal-clear waters and the stunning scenery of Clearwater Beach and its surrounding barrier islands. Our tours balance adrenaline-pumping open-water rides with serene cruising for a comprehensive and unforgettable experience. Whether you're a thrill-seeker or prefer a leisurely ride, our tours cater to all preferences and skill levels.
401 East Shore Drive, Clearwater, Florida 33767, United States -
Beach Charters by the Bay
● OpenWelcome to Beach Charters by the Bay, your premier travel agency specializing in unforgettable boating experiences in the beautiful Tampa Bay area. Located at 4630 29th Avenue South, Gulfport, Florida, our business is dedicated to providing exclusive private charters to some of the region's most pristine beaches, accessible only by boat. Our vessel, a luxurious Regal LX4 Boat, is equipped with the latest comfort and safety features, ensuring a smooth and enjoyable journey for up to six guests. Whether you're seeking a serene escape or an adventurous outing, our charters offer the perfect opportunity to experience the magic of Tampa Bay.
4630 29th Avenue South, Gulfport, Florida 33711, United States -
Between The Tides
● OpenWelcome to Between The Tides, your premier destination for real estate and travel experiences in the heart of Florida's Gulf Coast. Nestled at 3721 116th Street West, Bradenton, Florida, our unique agency offers a blend of accommodation and adventure, perfect for those looking to explore the stunning beauty of Anna Maria Island, Bradenton, and the historic charm of Cortez. Discover the allure of coastal living with our charming 1 Bed/1 Bath property, thoughtfully designed to provide both comfort and convenience. With a Queen bed, Sofa Sleeper, child-size bunks, and a futon in the Lanai, this cozy retreat accommodates up to six guests. Enjoy the open layout with a work/desk area, a fully equipped kitchen, and a spacious Lanai that extends to a breezy back patio, creating a perfect space for relaxation.
3721 116th Street West, Bradenton, Florida 34210, United States -
Lake Shore Park
● ClosedWelcome to Lake Shore Park, a charming resident-owned, 55 community nestled in the heart of St. Petersburg, Florida. Located at 800 32nd Avenue South, our serene gated community sits directly across the picturesque Lake Maggiore on Martin Luther King Jr. St. (9th) S, offering a tranquil retreat with the convenience of urban living. At Lake Shore Park, security and peace of mind are paramount. Our community features gated access with nighttime closure and security cameras. Residents enjoy the benefits of a well-maintained environment, with monthly maintenance fees kept at an affordable $140.00, thanks to the dedicated involvement of our volunteer residents. Please note, to preserve our peaceful atmosphere, pets are not allowed.
800 32nd Avenue South, St. Petersburg, Florida 33705, United States -
JET Rx Travel
● OpenWelcome to JET Rx Travel, your premier travel agency located in the heart of Tampa, Florida! Situated at 11307 Minaret Drive, we specialize in crafting personalized travel experiences that cater to your unique preferences and needs. Whether you're dreaming of a relaxing beach getaway, an adventurous mountain expedition, or a cultural city tour, our expert team is dedicated to making your travel dreams a reality. At JET Rx Travel, we pride ourselves on our exceptional customer service and attention to detail. Our knowledgeable travel advisors are here to guide you every step of the way, from planning and booking to providing support throughout your journey. We offer a wide range of services, including flight and hotel reservations, cruise packages, guided tours, and travel insurance, ensuring a seamless and stress-free travel experience.
11307 Minaret Drive, Tampa, Florida 33626, United States -
HappySails.live
● OpenWelcome to HappySails.live, your premier destination for unforgettable sailing adventures in the beautiful coastal city of St. Petersburg, Florida. Nestled in the heart of the Sunshine State, our tourist attraction offers a unique blend of relaxation and excitement on the sparkling waters of Tampa Bay. At HappySails.live, we specialize in creating memorable experiences for locals and visitors alike. Whether you're looking to unwind with a leisurely cruise or seeking the thrill of a high-seas adventure, our expert crew is dedicated to ensuring your time on the water is nothing short of spectacular. Our state-of-the-art sailboats are equipped with all the amenities you need for a comfortable and enjoyable voyage.
St. Petersburg, Florida 33711, United States -
Wesley Memorial United Methodist Church
● OpenWelcome to Wesley Memorial United Methodist Church in Tampa, Florida! Located at 6100 Memorial Highway, we are a vibrant and diverse congregation welcoming people from all backgrounds, nations, races, and ages. Our Christ-centered worship service, held every Sunday at 10:00 AM, is rooted in biblical teachings and designed to address today's challenges. During the service, we offer special classes for children, ensuring a meaningful experience for all family members. At Wesley Church, we are committed to becoming disciples of Jesus Christ by fostering relationships within our church and the wider community. Our passion for serving our neighbors is demonstrated through various outreach programs that share the love of Jesus. Whether you're interested in joining our women's ministry, participating in Bible studies, or engaging in community service, there is a place for you here.
6100 Memorial Highway, Tampa, Florida 33615, United States -
TOTAL REALTY SERVICES
● ClosedWelcome to Total Realty Services, Inc., your premier real estate agency located at 13030 Gulf Lane, Madeira Beach, Florida. Specializing in condo-hotels and seasonal investment properties, we are passionate about selling real estate in the Sunshine State and are experts in the buying and selling of condos across our beautiful Gulf Beaches. Our website is a comprehensive resource for both buyers and sellers, featuring the best real estate tools available. It is easy to use and updated every 15 minutes by the official Realtor®’s database. You can save searches, receive daily email alerts of new listings, price changes, sold data, and market reports, and even use our Interactive Map Search to view properties on a map or refine your search by drawing boundaries around your desired area. Bookmark our page for your home, condo, and investment property searches—it’s the only site you’ll ever need!
13030 Gulf Lane, Madeira Beach, Florida 33708, United States
People also searched for:
- cruise offers in Bradenton
- cruise offers in Bradenton Beach
- cruise offers in Clearwater
- cruise offers in Gulfport
- cruise offers in Holiday
- cruise offers in Homosassa
- cruise offers in Lake City
- cruise offers in Madeira Beach
- cruise offers in Miami
- cruise offers in Orlando
- cruise offers in Palmetto
- cruise offers in Riviera Beach
- cruise offers in Ruskin
- cruise offers in St. Petersburg
- cruise offers in Tarpon Springs
- cruise offers in Treasure Island
People also searched for:
List of local businesses, places and services in Florida
⭐ business help 🔍 services ☎ phones 🕒 opening times ✍️reviews 🌍 addresses, locations 📷 photos