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Marathon's recreational heart is the water. Sombrero Reef, a spectacular coral reef system just offshore in the Atlantic, is one of the most visited dive and snorkel sites in the entire Florida Keys National Marine Sanctuary — and accessible in minutes by boat from any of Marathon's numerous marina properties. Boot Key Harbor is one of the largest protected anchorages in the Keys and a hub for the liveaboard cruising community, while the Vaca Cut and Knight's Key channels provide direct passage between the Atlantic and Florida Bay sides of the island. And of course, the Seven Mile Bridge — one of the most iconic and photographed structures in Florida, an engineering marvel stretching from Marathon to the Lower Keys — provides a daily reminder that life here exists at the intersection of the extraordinary and the everyday.

Marathon Real Estate — The Most Diverse Market in the Middle Keys

Marathon offers the most diverse real estate market in the Middle Keys, ranging from affordable canal-front starter homes and investment condos to expansive oceanfront estates, private marina compounds, and executive-level new construction homes with resort-style amenities. The Marathon waterfront market is particularly compelling for buyers seeking properties with commercial-grade dock and lift infrastructure for serious sportfishing or cruising. The area's strong vacation rental market — driven by year-round tourism, proximity to the reef, and the appeal of Crane Point Hammock, the Marathon Turtle Hospital, and other major visitor attractions — also makes Marathon one of the Keys' strongest markets for investment property buyers. Browse available Marathon homes for sale below and discover why this Middle Keys city continues to attract buyers who want it all.