Mahi-Mahi Fishing in Key Biscayne

Yes. Anglers fishing in Key Biscayne need a valid Florida fishing license (with the right freshwater or saltwater privileges for where you fish). Resident, non-resident, and short-term options are all available — see our Florida guide for current 2026 prices and direct purchase links.

The flats set the Key Biscayne calendar. Bonefish are best in the warmer months and through fall, pushing onto the Biscayne Bay flats on the tides and sliding off into channels when winter cold fronts drop the water temperature. Tarpon are the spring headliner — the migration stages through Government Cut, Bear Cut, and along the beaches from roughly March into June, with resident fish in the bay much of the year. Permit work the oceanside flats and the nearshore wrecks in the warm season. Snook hold Cape Florida, Bear Cut, and the bridges most of the year, subject to Atlantic harvest closures (December 15–January 31 and June 1–August 31). Offshore out of Government Cut, winter is sailfish and kingfish on the reef and spring into summer is mahi-mahi. Summer brings daily storms and hurricane season June–November — the flats fish best on calm, clear mornings.

Create a free MyFishingBuds profile, set Mahi-Mahi as a target species, and pick Key Biscayne as your area. You'll be matched with nearby anglers who target the same species and fish a similar style, so you can plan a trip, share a boat, and split the costs.