Best 231 things to do in Marathon, FL

Build confidence navigating underwater with compass and natural techniques

Learn search patterns, lift-bag techniques, and recovery diving skills

Understand shark behavior and earn an SSI Shark Ecology Specialty certification

Learn ray identification and ocean ecology with an SSI specialty certification

Identify reef fish and earn your SSI specialty certification

Learn to identify corals and earn an SSI specialty certification

Learn sea turtle identification and earn an SSI specialty certification

Earn SSI Nudibranch Ecology certification through seven focused sessions

Choose freedive or scuba spearfishing with a private boat and in-water guide

Spearfish lionfish from a private scuba charter with an in-water guide

Private boat diving with an in-water guide, gear, and refreshments included

Explore Islamorada’s underwater side with snorkeling gear available if needed

GPS-guided tritoon cruising with walk-up water access

GPS-guided cruising and fishing around Cudjoe Key

Cruise the Everglades after dark for stargazing and nocturnal sounds