Located in the Middle Keys, Marathon is one of the few spots in the Keys with natural sand beaches and calm waters. With a central location in the archipelago, Marathon Key is an ideal launch pad for day trips throughout the Keys, with numerous options for marine adventures, historic sightseeing and famous tourist attractions, all within a short drive or boat ride. It’s here that Tranquility Bay has made its home, tucked away on the Gulf of Mexico shore with calm waters and sunset views.

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Dry Tortugas National Park in turquoise waters

Dry Tortugas

For an adventure farther afield, hop aboard the Dry Tortugas National Park Ferry for the 70-mile journey from Key West. Tour historic Fort Jefferson, a former Civil War prison and the largest masonry structure in the western hemisphere at more than 16 million bricks. Grab a snorkel to explore the coral formations in the warm waters around Garden Key, or break out the binoculars for the Great Florida Birding Trail.

Islamorada, Florida.

Islamorada

A 45-minute drive from Marathon, Islamorada is known as the sport-fishing capital of the world, a quieter alternative to Key West with plenty to offer. Relax on the white sands of Anne’s Beach, meet rescued aquatic creatures at the conservation-focused Theater of the Sea, or watch for manatees on a kayaking tour through the mangroves.

Key West, Florida.

Key West

Just an hour and fifteen minutes from Marathon, iconic Key West is the southernmost point of the continental United States, only 90 miles from Cuba. The onetime home of Ernest Hemingway and Tennessee Williams offers a vibrant historic district and creative culinary scene. Wander the Key West Butterfly and Nature Conservatory, snap a photo at the Southernmost Point marker, or celebrate the famous sunset at Mallory Square.

Marathon, Florida.

Marathon

Located in the heart of the Florida Keys, Marathon puts the best of the Keys within easy reach, a favorite of history buffs, animal lovers, and outdoor enthusiasts alike. Snorkel and beachcomb at Bahia Honda State Park, step back in time among the century-old buildings of Pigeon Key Historic District, or watch endangered sea turtles being rehabilitated at the Turtle Hospital, right next door to the resort.

In and Around Tranquility Bay

Anne's Beach

Wade through calm, shallow waters at Anne’s Beach, a family-friendly Islamorada beach with boardwalks, picnic areas and easy access.

Coco Plum Beach

Unwind at Coco Plum Beach, a quiet, dog-friendly Marathon beach with natural Atlantic shoreline, wetlands and picnic facilities.

Sombrero Beach

Swim and picnic at Sombrero Beach, Marathon’s popular sandy beach with accessible facilities and seasonal sea turtle nesting.

Dry Tortugas National Park

Discover Dry Tortugas National Park by ferry, combining Fort Jefferson history, coral reef snorkeling and remote island scenery.

Alligator Reef Lighthouse

Snorkel Alligator Reef Lighthouse near Islamorada, where clear Florida Keys waters reveal colorful coral, tropical fish and maritime history.

Dolphin Research Center

Visit Dolphin Research Center on Grassy Key for dolphin encounters, sea lions, marine mammal education and conservation-focused family programs.

Turtle Hospital

Tour Marathon’s Turtle Hospital to learn how injured sea turtles are rescued, rehabilitated and returned to Florida Keys waters.

Crane Point Hammock

Explore Crane Point Hammock in Marathon, featuring tropical trails, Florida Keys history, wildlife encounters and the historic Adderley House.

Key West Botanical Garden

Wander the Key West Tropical Forest & Botanical Garden, a native-plant sanctuary filled with butterflies, birds and peaceful trails.

Key West Butterfly & Nature Conservatory

Walk among hundreds of butterflies and exotic birds inside the Key West Butterfly & Nature Conservatory’s lush tropical habitat.

Key West Aquarium

Discover sharks, sea turtles and touch-tank creatures at Key West Aquarium, one of the island’s classic family attractions.

Theater of the Sea

Enjoy dolphin shows, marine animal encounters and tropical lagoons at Theater of the Sea, a landmark Islamorada attraction.

Fort Jefferson

Tour historic Fort Jefferson in Dry Tortugas National Park, a massive coastal fortress surrounded by turquoise water and coral reefs.

History of Diving Museum

Explore diving history, vintage equipment and underwater exploration at Islamorada’s History of Diving Museum, a fascinating Florida Keys attraction.

Fort East Martello

Explore Civil War history, Key West art and Robert the Doll at the historic Fort East Martello Museum.

Museum of Art & History

Discover Key West history, art and architecture inside the landmark Custom House, home to engaging exhibits and local stories.

Key West Lighthouse

Climb the Key West Lighthouse for panoramic island views, then explore keeper’s quarters filled with maritime history.

Key West Cemetery

Tour historic Key West Cemetery to discover island history, above-ground tombs and stories reflecting the city’s colorful past.

Hemingway Home & Museum

Tour Ernest Hemingway’s Key West home, meet its famous six-toed cats and explore the author’s writing studio and gardens.

Pigeon Key

Visit historic Pigeon Key beneath the Seven Mile Bridge for railroad history, guided tours and scenic Florida Keys views.

Indian Key Historic State Park

Kayak to Indian Key Historic State Park to explore island ruins, nature trails and Florida Keys pioneer history.

Key West Historic Seaport

Explore Key West Historic Seaport for waterfront dining, sailing excursions, shopping and lively harbor views along the island’s marina.

Southernmost Point

Snap a photo at Key West’s iconic Southernmost Point buoy, one of the island’s most recognizable landmarks.

Duval Street

Experience Duval Street’s famous Key West nightlife, restaurants, galleries and shops stretching through the island’s historic district.

Mallory Square

Celebrate sunset at Mallory Square with waterfront views, street performers, local artisans and a classic Key West tradition.

Overseas Heritage Trail

Bike the Florida Keys Overseas Heritage Trail for scenic bridges, waterfront views and miles of island-to-island adventure.