4. Cook your catch at Robbie’s Marina
Usually, there’s nothing more impolite than striding into a restaurant and slapping a fish on the table, but this is expected at Robbie’s Marina in Islamorada. Equal parts fishing port, restaurant and souvenir stand, the Marina sits squarely in the self-styled sport fishing capital of the world and invites budding anglers to enjoy their fresh mahi-mahi or yellowtail snapper with a side of fries.
It’s a popular spot (with queues to match), but you can while away the wait by feeding the freakishly large tarpon under the dock. They’ll jump for a handful of herring – but watch out because the bolshy pelicans will, too.
5. Snorkel America’s first undersea park
To see the Keys’ sea life for yourself, all you need to do is slip on your fins and dive in. The best place to try snorkelling is John Pennekamp Coral Reef State Park, the first underwater reserve in the US and home to one of the largest living barrier reefs.
In fact, the reef’s vivid yellow coral formations, purple-veined sea fans and warm, clear waters, teeming with tropical fish regularly gain it plaudits for being among the best.
Catch a glimpse of neon-blue parrotfish, stingrays and shoals of barracuda around the Christ of the Abyss statue, or scan the swaying beds of seagrass for signs of lobsters and conch. If you’re lucky, you might even spot a nurse shark.