Things to do nearGrassy Key Marina

    Grassy Key Marina is a laid-back boating hub in Marathon, Florida, offering convenient Gulf access, calm anchorage, and a gateway to world-class fishing and reef diving.

    Grassy Key Marina sits at mile marker 58 on the Overseas Highway, placing it squarely in the heart of the Florida Keys between Key Largo and Key West. The marina serves recreational boaters, anglers, and visiting cruisers looking for a quieter alternative to the busier facilities in downtown Marathon. Its bayside position gives access to Florida Bay, the Gulf of Mexico, and the Atlantic via nearby cuts.

    Anglers working out of Grassy Key Marina target a remarkable range of species. The flats hold bonefish, permit, and tarpon, while deeper offshore water produces mahi-mahi, wahoo, and sailfish. Nearby Coffins Patch Reef draws snorkelers and divers, and local fishing charters can put you on productive grounds within minutes of leaving the dock.

    The surrounding area rewards exploration beyond the water. Curry Hammock State Park is just a few miles away and offers paddling trails, a swimming beach, and some of the best hawk-watching in the Keys during fall migration. The broader Marathon area has a solid selection of seafood restaurants and waterfront spots where a day on the water ends well.

    Grassy Key Marina rewards visitors who value access over amenities, putting some of the most productive and scenic waters in the Florida Keys within easy reach.

    59073 Overseas Hwy, Marathon, FL 33050, USA

    7-day forecast

    Chance of rain
    81°79°80°79°80°79°78°
    TodaySatSunMonTueWedThu
    24%24%21%40%

    Tips for visiting Grassy Key Marina

    1

    Visit during the early morning hours when winds are calm and the flats fishing is at its best.

    2

    Bring polarized sunglasses to spot bonefish and permit in the shallow grass beds just off the key.

    3

    Top off fuel and supplies here before heading offshore, as services thin out quickly on the water.

    4

    Try kayaking the nearby mangrove channels at low tide for an up-close look at juvenile marine life.

    5

    Check tide charts before planning a departure, as shallow cuts in the area require careful timing.

    Top tours & experiences near Grassy Key Marina

    Showing 1-19 of 19 results
    Grassy Key Daily Jet Ski Rental in Marathon, FL

    Grassy Key Daily Jet Ski Rental in Marathon, FL

    Take the controls for a jet ski ride in Marathon

    4.5 • 97 reviews
    $754/ jet-ski
    20' Center Console Boat Rental in Marathon

    20' Center Console Boat Rental in Marathon

    Explore Florida Keys waters with fishing gear and swim access on board

    4.2 • 165 reviews
    $369/ boat
    Lily Pad Float Rental in Marathon

    Lily Pad Float Rental in Marathon

    Enjoy a durable floating water mat for family time on the water

    4.5 • 97 reviews
    21' Center Console Boat Rental in Marathon, FL

    21' Center Console Boat Rental in Marathon, FL

    Explore Florida Keys waters in a fishing-equipped Parker

    4.2 • 165 reviews
    $397/ boat
    18' Skiff Boat Rental for Fishing & Snorkeling in Marathon

    18' Skiff Boat Rental for Fishing & Snorkeling in Marathon

    Explore shallow water at your own pace

    4.5 • 97 reviews
    $347/ boat
    22' Dual Console Boat Rental in Marathon

    22' Dual Console Boat Rental in Marathon

    Take the helm for a boating escape in the Florida Keys

    4.2 • 165 reviews
    $454/ boat
    20' Mako Dual Console Boat Rental in Marathon

    20' Mako Dual Console Boat Rental in Marathon

    Explore the Florida Keys with 150 HP and gear for fishing and swimming

    4.2 • 165 reviews
    $369/ boat
    24' Deck Boat Rental in Marathon, Florida Keys

    24' Deck Boat Rental in Marathon, Florida Keys

    Explore the Florida Keys with a deck boat equipped for fishing and swimming

    4.2 • 165 reviews
    $482/ boat
    25' Center Console Boat Rental in Marathon

    25' Center Console Boat Rental in Marathon

    Explore Florida Keys waters with fishing gear and easy access to the water

    4.2 • 165 reviews
    $568/ boat
    Snorkel, Sandbar & Sunset Charter in Marathon

    Snorkel, Sandbar & Sunset Charter in Marathon

    Snorkel the reef, relax at Valhalla Sandbar, then cruise back at sunset

    4.9 • 934 reviews
    $3,967
    25' Center Console Boat Rental From Grassy Key

    25' Center Console Boat Rental From Grassy Key

    Take the helm on a 25’ center console for fishing, snorkeling, or sandbar time

    4.5 • 97 reviews
    $462/ boat
    20' Dual Console Boat Rental in Marathon

    20' Dual Console Boat Rental in Marathon

    Fish, snorkel, or relax at sandbars on a versatile dual-console boat

    4.5 • 97 reviews
    $231/ boat
    20' Cape Horn Boat Rental in Marathon

    20' Cape Horn Boat Rental in Marathon

    Set out to fish from a 20-foot Cape Horn center console

    4.5 • 97 reviews
    $375/ boat
    21' Parker Boat Rental in Marathon

    21' Parker Boat Rental in Marathon

    Fish and visit the sandbar aboard a 21-foot center-console

    4.5 • 97 reviews
    $404/ boat
    25' Center Console Boat Rental in Marathon

    25' Center Console Boat Rental in Marathon

    Fish or dive from a 25-foot Proline with a fin-friendly boarding ladder

    4.5 • 97 reviews
    $578/ boat
    18' Center Console Boat Rental in Marathon

    18' Center Console Boat Rental in Marathon

    A shaded center-console boat for flexible time on the water

    4.5 • 97 reviews
    $347/ boat
    Marathon 20' Mako Boat Rental

    Marathon 20' Mako Boat Rental

    A family-friendly boat for sandbars, reefs, and fishing

    4.5 • 97 reviews
    $433/ boat
    22' Sea-Hunt Boat Rental in Marathon

    22' Sea-Hunt Boat Rental in Marathon

    Explore sandbars, snorkeling spots, and fishing areas by boat

    4.5 • 97 reviews
    $491/ boat
    24' Deck Boat Rental in Marathon

    24' Deck Boat Rental in Marathon

    Get out on the water aboard a shaded 24-foot deck boat

    4.5 • 97 reviews
    $520/ boat