Florida Keys National Marine Sanctuary Tours and Tickets

Snorkeling is fun, safe, and easy aboard the Sundiver III. Join us for a 2.5 hour underwater tour to the shallow, inner, coral reefs located at the "World Famous" Key Largo National Marine Sanctuary, also known as the original John Pennekamp Underwater State Park. Sundiver was founded in 1983 and our captains with over 40 years experience will bring you to the most unique and pristine reefs located inside the Florida Keys Marine Sanctuary. You will be absolutely amazed at the underwater world that lives just offshore of Key Largo. Our friendly crew specializes in kids, families, and first time snorkelers. As long as you can swim, we can teach you to snorkel.

The 3rd largest barrier reef in the world is yours to explore just off the shores of Key Largo. Grab your swimsuit and sunscreen for a half-day snorkeling adventure. You’ll board a stunning 45-foot catamaran and sail to the only living coral reef in the United States. Snorkeling equipment is provided so you can see the abundant sea life in the Florida Marine Sanctuary.

Swap the crowds of the big boat tours that are typical of the Florida Keys for a more personal experience. This small-group cruise from Key Largo takes you out onto the Florida Bay. As you cruise around the local waters looking for wildlife such as dolphins and manatees, the crew will provide insights into the unique ecosystem of the Florida Keys.

Experience the best that Key West has to offer with this combination tour that includes a dolphin watch, snorkeling, and a view of the island’s famous sunset. Spot dolphins in their natural habitat in the Florida Keys National Marine Sanctuary and snorkel in the blue waters surrounding Key West during this family-friendly excursion.

Kayaking is a great way to experience the Florida Keys but your views are typically limited to what's above the surface of the water. This small-group tour provides clear kayaks that let you discover the underwater world as well. As you paddle, you just need to look below to spot starfish, tropical fish, nurse sharks, turtles, jellyfish and more.

Discover the underwater world of Key Largo at your leisure on this half-day group snorkeling tour. Climb aboard a boat for a scenic trip to shallow reefs in John Pennekamp State Park, stopping at popular landmarks including Christ of the Deep and Grecian Rocks. Pack light, as snacks, snorkeling equipment, and reef-safe sunscreen are included.

Explore the marine wildlife rich waters of the Florida Keys. This snorkeling trip takes you out onto the water in a large, comfortable catamaran. You'll journey to the Florida Keys National Marine Sanctuary and John Pennekamp Coral Reef State Park to explore reefs that are part of the third largest living reef system in the world and the only living coral reef in the United States.

Discover 28 miles (45 kms) of the Floridian coast on a 1.5-hour Jet Ski tour. With several daily tours, you can easily find a time that fits with your schedule. The tour is priced per Jet Ski, so you can ride tandem with a friend at no additional cost. Your guide is on hand at all times to lead the way on your aquatic adventure.

Dive into the breathtaking beauty of the Florida Keys Reef, the only living coral barrier in the continental U.S. Join expert guides on an unforgettable snorkeling adventure with visits to the Florida Keys National Marine Sanctuary and John Pennekamp Coral Reef State Park. Snorkeling gear is included, and you’ll enjoy extended swims at each picturesque spot—perfect for confident swimmers ready to explore vibrant marine life in crystal-clear waters.

This shallow-water snorkeling tour in Key Largo specializes in creating great snorkeling experiences for first-time snorkelers, kids, and families. Get a fun and comfortable introduction to snorkeling on this tour in the Florida Keys National Marine Sanctuary, known for its beautiful reefs and marine life.

Get ready for fun in the sun—and check off two top experiences in just one trip—on this dolphin-watching and snorkeling tour off the coast of Key West. Departing Key West, look out for dolphins swimming alongside the boat, then jump in for a shallow-water snorkel at the Key West National Wildlife Refuge with many different species of marine life. Relax, feel the warm sea breezes, and select from a variety of refreshing beverages on board the boat.

Join us for an unforgettable Pirates Cove snorkeling adventure in the crystal-clear turquoise waters of the Florida Keys National Marine Sanctuary and John Pennekamp Coral Reef State Park — home to the only living coral barrier reef in the continental United States. Whether you're a first-time snorkeler or a seasoned explorer, this half-day excursion is the perfect way to experience the vibrant underwater world of colorful coral formations, tropical reef fish, and other incredible marine life. We provide high-quality snorkel gear and reef-safe sunscreen — all you need to bring is a towel, beverage, some snacks, and your sense of adventure. There's no need to go anywhere else... paradise is waiting just offshore!

Save time and money in Key West on this all-inclusive, full-day excursion. Enjoy a day of sailing, snorkeling, and kayaking off the coast. Visit the Key West National Wildlife Refuge and explore an underwater world full of colorful fish and coral. Includes a buffet lunch with unlimited beer, wine, and soft drinks.

Watch Key West's sunset — a main island attraction — on an evening dinner cruise. Feast on a tropical-themed buffet dinner and sip provided cocktails, beer, wine, and soft drinks as you take in views of the sea, the waterfront, and the sky's warm glow. Live music provides a festive atmosphere, and a cash bar is also available for premium drinks.

Spend a stunning afternoon soaking up the sights of the Gulf of Mexico, chilling out at a sandbar, and watching dolphins at the Florida Marine Sanctuary. With the help of a fun and informative crew, you’ll explore the Floridian sea while your guides tell you all about the area’s history and wildlife. Enjoy lunch as well as unlimited beer, wine, and mimosas on your trip—just remember to drink responsibly.

Get ready for fun in the sun—and leave all the planning to someone else—on this half-day sailing, kayaking, and snorkeling adventure off the coast of Key West. Kayak through a maze of mangrove-canopied canals and streams, home to a tropical array of birds, rays, sharks, sport fish and more. Then jump into the water for a snorkeling session above a coral reef teeming with marine life. Snacks, beer, wine, and soft drinks are included.

Explore the serene mangrove waterways of Geiger Key on this guided eco-tour. Perfect for all ages and levels of experience. Choose between a single kayak, double kayak, or stand-up paddleboard as you glide through the lush scenery. Your knowledgeable guide will point out the hidden gems of this unique Florida Keys ecosystem, ensuring a memorable and educational experience. With safety gear, paddle instruction, bottled water, and dry bags provided, all you need to bring is your sense of adventure. Enjoy complimentary shuttle pick-up from Key West and immerse yourself in nature for two hours of tranquility.

Take in rare birds–eye views of Key West on a parasailing adventure over Smathers Beach. With a range of departure times offered throughout the day, this tour is a popular, flexible choice for families. Your guide, who ensures that the small group has a personalized experience, takes photos and videos available for purchase after the trip.

Try something new in Key West: parasailing. Adventure seekers who've booked this trip will love soaring over the Key West Seaport. The experience is available for singles, doubles, and even triples so it's a fantastic activity for a group of friends or a family. You'll board a state-of-the-art boat, get briefed by the crew, and then fly over the city—free as a bird.

Immerse yourself in nature in Key West on this small-group guided safari snorkeling adventure. Captain your own mini speedboat through 28 miles (45 kilometers) of Florida backcountry waters of the Florida Keys. Swim and snorkel in crystal clear waters of Mud Key, and keep your eyes for wildlife such as dolphins, turtles, and ospreys.

Key West’s ONLY Happy Hour Sandbar Party & Sunset Cruise! Get ready for the ultimate Key West experience—the only Happy Hour at the Sandbar & Sunset Cruise! This exclusive trip takes you to a beautiful sandbar, where you can lounge on our floating lily pads while our crew turns into your personal bartenders, serving up unlimited draft beer, mimosas, wine, and champagne. For those looking to explore, grab a snorkel and discover the underwater world teeming with tropical fish, stingrays, and other marine life. As the sun starts to set, we’ll cruise through the Florida Marine Sanctuary, giving you a front-row seat to Key West’s famous sunset—keep an eye out for dolphins, sea turtles & more! Savor a taste of Key West at the sandbar! Enjoy Cuban sandwiches, veggie wraps, fresh fruit, cheese & crackers, pita with hummus & more—all paired with unlimited beer, wine, mimosas & champagne. The perfect happy hour on a boat! Whether you’re here to relax, party, or explore, this trip has it all.

Combine two activities into one tour and save with this Key West sunset snorkel sail. Not only will you get to relax and listen to the music as you cruise on the Atlantic Ocean during sunset, but you’ll also get to snorkel in a nearby coral reef. Beverages and snorkel equipment are included for added convenience.

Get ready to spend a half-day soaking up the sun and enjoying Key West’s diverse ecology during this fun sandbar and mangrove tour. Discover the backcountry waters and secluded sandbars around the busy island, all while sipping on cold drinks. This guided kayak ecotour takes you into the mangrove isles to spot dazzling marine life before heading to a sandy beach to knock back a few alcoholic or nonalcoholic beverages.