The Old Seven Mile Bridge, stretching between Knight’s Key in Marathon and Little Duck Key, is one of the most iconic landmarks in the Florida Keys. Originally built from 1909 to 1912 as part of Henry Flagler’s ambitious Overseas Railroad, the bridge was considered an engineering marvel of its time. It spanned open water for nearly seven miles, making it one of the longest bridges in the world when completed.
For over two decades, trains traveled the bridge, connecting the Keys to mainland Florida and fueling tourism and development. However, in 1935, the devastating Labor Day Hurricane severely damaged large portions of the railroad, leading to the end of Flagler’s railway dream. The bridge was later converted for automobile use, becoming a vital link in the Overseas Highway (U.S. 1), which connected the Keys by road for the first time.
By the 1980s, a new Seven Mile Bridge was built alongside the original to handle modern traffic. Much of the old structure was retired, but a 2.2-mile section from Marathon to Pigeon Key was preserved for pedestrians, cyclists, and anglers. Today, the Old Seven Mile Bridge is both a treasured piece of Florida history and a scenic recreational pathway, offering stunning views of turquoise waters, marine life, and unforgettable sunsets.
The Old Seven Mile Bridge, stretching between Knight’s Key in Marathon and Little Duck Key, is one of the most iconic landmarks in the Florida Keys. Originally built from 1909 to 1912 as part of Henry Flagler’s ambitious Overseas Railroad, the bridge was considered an engineering marvel of its time. It spanned open water for nearly seven miles, making it one of the longest bridges in the world when completed.
For over two decades, trains traveled the bridge, connecting the Keys to mainland Florida and fueling tourism and development. However, in 1935, the devastating Labor Day Hurricane severely damaged large portions of the railroad, leading to the end of Flagler’s railway dream. The bridge was later converted for automobile use, becoming a vital link in the Overseas Highway (U.S. 1), which connected the Keys by road for the first time.
By the 1980s, a new Seven Mile Bridge was built alongside the original to handle modern traffic. Much of the old structure was retired, but a 2.2-mile section from Marathon to Pigeon Key was preserved for pedestrians, cyclists, and anglers. Today, the Old Seven Mile Bridge is both a treasured piece of Florida history and a scenic recreational pathway, offering stunning views of turquoise waters, marine life, and unforgettable sunsets.
Answer common concerns to help potential customers feel more confident about booking.
If you have your own bike, feel free to bring it! However, bike rentals are available upon request. Please let us know in advance if you need a rental.
Absolutely! The Withlacoochee State Trail is a flat, paved path, making it perfect for beginners, families, and experienced cyclists alike. Our guided tour moves at a comfortable pace to ensure everyone enjoys the experience.
We recommend bringing water, sunscreen, sunglasses, a hat, comfortable clothing, and closed-toe shoes. If you’re biking, a helmet is also recommended (and required for children under 16).
(352) 966-8376
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20093 E Pennsylvania Ave Ste. 3, Dunnellon, FL 34432
At Electric Scooters & Bikes LLC, we make exploring Dunnellon easy and exciting with hassle-free electric scooter rentals. Whether you’re cruising along scenic trails or visiting top attractions, our eco-friendly rides provide a smooth, fun, and convenient way to experience the city.
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