About this city
Also known as: The Heart of the Keys
Marathon is a quintessential, marine-centric resort city comprised of a 10-mile-long chain of islands located in the middle of the Florida Keys archipelago in Monroe County. Historically incorporated in 1999 to unite several fishing communities, the city grew significantly during the early 1900s as a major construction hub for Henry Flagler's groundbreaking Overseas Railway project, with workers tirelessly striving to meet intense building deadlines. Geographically situated right in the heart of the Keys, Marathon serves as the northern gateway to the iconic Seven Mile Bridge. The city is universally celebrated for its deep fishing heritage, world-class barrier reef access, and pioneering marine wildlife conservation facilities, offering a highly family-oriented, relaxed island lifestyle.
Location & Administrative
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Economics & Local Vibe
Practical Tourism Metadata
Suggested stay: 2–3 days
Walk or bike the historic Old Seven Mile Bridge to Pigeon Key, feed rescued sea turtles at the famous Turtle Hospital, relax on the beautiful sands of Sombrero Beach, and feed tarpon at Robbie's Marina nearby.
