Blackfin Resort and Marina…This old-style keys resort is located on the Gulf of Mexico in the heart of Marathon Key. Surrounded by tropical foliage and fragrant flowers, you can relax in our refreshing swimming pool, regain your sanity on our private beach, or take a kayak trip. Dive or snorkel and discover the wonders of our local coral reefs. Everywhere you go you’ll find warm smiles and comfortable settings. The Blackfin Resort is the ideal vacation destination.

The Blackfin Resort offers a complete range of room types to suit your vacation or traveling needs.  Choose from a simple single, one queen sized bed motel type room to a two-bedroom apartment that will accommodate up to 6 persons. 

We welcome you and your pets!  Be sure to keep your pet
on a  leash to ensure the safety of your pet and the other guests.