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Welcome to the Florida Keys

One of America's most unique motor journeys, the scenic 110-mile Overseas Highway combines ocean views, 42 bridges, natural wonders and history like...

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Kayakers paddle through winding turquoise waters amid lush green mangroves under a blue sky.

Eco-Tours

Exploring The Florida Keys is even better when you let nature–and experienced local guides–lead the way. Eco-tours bring you closer to mangrove...

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Insider's Guide

Marathon Premier Sailfish Tournament

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Marathon

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Florida Keys Aquarium Encounters

11710 Overseas Highway
Marathon, FL 33050
United States

Sandy beach with boat, palm tree, and wooden pier extending into turquoise sea under blue sky.

Boat floating on clear turquoise water, viewed from above.

Sunset over calm water with a bridge, vibrant sky with clouds.

Sunset over a pier with people, boats, and distant islands.

Palm fronds silhouetted against a purple sunset over calm water.

Divers exploring vibrant coral reef underwater.

Diver exploring coral reef with yellow fish.

Vast blue sky over a calm, clear shallow ocean with distant green trees.

Aerial view of a long bridge over turquoise ocean, with a small island below.

Beachfront resort with palm trees, blue sea, and sandy beaches.

Two people paddleboarding on calm, turquoise water under a clear sky.

Snorkelers floating in clear turquoise ocean under a blue sky.

Tropical islands with lush greenery and turquoise water, small boat visible.

Sea turtle swimming underwater in clear blue water.

Turquoise sea with red lighthouse and underwater coral patterns.

Aerial view of islands and turquoise sea, airplane wing visible.

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