Best attractions and places to see around Marathon, located in the heart of the Florida Keys, spans 13 islands and is known for its tropical allure and rich maritime history. This region offers a diverse range of attractions for nature lovers and history enthusiasts. Visitors can explore a landscape characterized by serene charm, tropical vegetation, and clear waters. The area provides opportunities to engage with both natural features and significant historical landmarks.
Last updated: May 4, 2026
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This iconic bridge is the longest in the Florida Keys, built in 1982 to provide safe stops for visitors to view wildlife and enjoy the stunning green water. The original bridge, constructed in 1912 as a railroad bridge and called the “Eighth Wonder of the World,” was narrow and required focus to cross from Marathon Key to Key West. Today, the old bridge mainly serves as a resting place for pelicans and great blue herons. There are some great benches here, and the Sunset Grill is just off the trail, offering delicious food and drinks. It's an ideal spot for a break to enjoy some incredible scenery.
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The Long Key Bridge, officially the Dante B. Fascell Bridge, connects Long Key and Conch Key. Stretching nearly two and a half miles, it is the second longest bridge on the Overseas Highway, following the iconic Seven Mile Bridge. This bridge opened in 1982, replacing the original Long Key Viaduct, which was in use by the Overseas Railroad from 1907 to 1935 before being repurposed for highway traffic. As you walk along, you’ll notice the original viaduct adjacent to this bridge, featuring a design of 186 concrete arches. This style has been commonly used in many railroad bridges throughout the Keys.
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In the early 20th century Marathon was the center of shipping operations in the region. Ships from Havana and other Caribbean locations would dock near the railway to offload their goods to trains heading north. However, this would all come to end in 1935 when a large storm damaged the rail lines and the highway soon replaced the railroad.
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The Florida Keys Overseas Heritage Trail runs for 106 miles through the Florida Keys and crosses over 37 bridges. Along the way you'll pass by many State Parks, beaches, bars, restaurants, and marinas; and all of them will be beckoning you to stop and stay a while. On the right day this is one of the best places to ride in the world.
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The old 7 Mile Bridge has been paved and is now a good walking and cycling path.
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A great place to enjoy the sunset under the 7-Mile Bridge with good food and drinks
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Impressive journey over the »New Seven Mile Bridge«. The old bridge is broken (03/2020), but is partially being renovated. Therefore, the bicycle traffic runs on the hard shoulder of US Highway No. 1. Good nerves are required, partly crumbs and tire parts lie on the bike path.
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Occasionally on the way to Key West next to the bridges, which are now cycle paths, you will find legacies of the former railway line.
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Marathon offers several beautiful natural areas. You can visit Curry Hammock State Park, the largest undeveloped area between Key Largo and Big Pine Key, perfect for camping, kayaking, and birdwatching. Bahia Honda State Park, a short drive away, boasts pristine beaches and walking trails. For a unique experience, explore Crane Point Hammock Museum and Nature Center, a 63-acre tropical oasis with trails and a wild bird center.
For a popular and family-friendly option, Sombrero Beach features soft sand, clear waters, picnic areas, and a playground. It's also a significant nesting ground for Loggerhead turtles. If you prefer a more secluded atmosphere, Coco Plum Beach offers natural beauty and tranquility.
Marathon is rich in history. The iconic Seven Mile Bridge is an engineering marvel with breathtaking views, and its historic Old Seven Mile Bridge section is now a recreational path. You can also visit the Overseas Railway Construction Headquarters, which was central to shipping operations in the early 20th century. Additionally, Pigeon Key Historic District offers insights into the construction of the Overseas Railroad and early settlers' lives.
Absolutely! Families can enjoy interactive experiences at the Dolphin Research Center on Grassy Key or learn about marine life at Florida Keys Aquarium Encounters. The Turtle Hospital offers informative tours about sea turtle conservation, which is both educational and engaging for all ages. Many of the bridges, like the Seven Mile Bridge and Long Key Bridge, are also considered family-friendly for walks and views.
The Turtle Hospital is a non-profit organization dedicated to rescuing and rehabilitating injured sea turtles, offering tours to educate visitors. The Dolphin Research Center provides interactive experiences and insights into marine mammal research. For an immersive experience, Sombrero Reef, part of the Florida Keys National Marine Sanctuary, is excellent for snorkeling and diving to see tropical fish and sea turtles in their natural habitat.
Yes, the Florida Keys Overseas Heritage Trail is a fantastic option, running for 106 miles through the Keys and crossing over 37 bridges. It's considered one of the best places to ride in the world. The old section of the Seven Mile Bridge has also been paved, making it a great path for cycling.
You can find several running routes around Marathon. Popular options include the Sombrero Beach loop, which offers moderate difficulty, and routes around Key Colony Beach. For more details and to explore various running trails, you can check out the Running Trails around Marathon guide.
Consider visiting Pigeon Key Historic District, a small island accessible by shuttle that offers a glimpse into the past. Boot Key Harbor is ideal for boating and paddleboarding, and its protected 1,100-acre island is a haven for migratory birds. The Sombrero Reef Lighthouse, located offshore, provides great photo opportunities when visited by boat or kayak.
The Florida Keys generally enjoy pleasant weather year-round. However, the cooler, drier months from November to May are often considered ideal for visiting attractions and outdoor activities, avoiding the peak heat and humidity of summer. If you're interested in seeing Loggerhead turtles, they nest between April and October, particularly at Sombrero Beach.
Yes, you can explore the rich history of the area at the Marathon Historical Society Museum. For art enthusiasts, the Shady Palm Art Gallery showcases the work of over fifty local artists, reflecting the creative spirit of the Keys.
Several attractions in Marathon welcome dogs. The recreational path on the historic Old Seven Mile Bridge is a great spot for a walk with your canine companion, offering stunning views. The Long Key Bridge is also listed as dog-friendly, providing another scenic option for you and your pet.


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