Matheson Hammock Marina is a full-service Miami-Dade County marina inside Matheson Hammock Park in Coral Gables. The National Park Service lists it among the mainland marinas in Biscayne's northern vicinity, so it's a practical launch and mooring point if you're taking a boat onto the bay. The marina sits on county land on the mainland; boats from here enter Biscayne Bay toward the national park's islands.
The county lists capacity for about 330 vessels, wet slips for boats 30 to 50 feet long, dry storage, 11 boat-launch lanes, a fuel dock, pump-out, water and electrical hookups, and a bait-and-tackle shop. Free Wi-Fi is available around the docks. On heavy-traffic days, marina access can pause until congestion eases and parking opens up.