Florida Keys Reel Adventures offers fishing charters, snorkeling trips, and lobster diving in Marathon, FL. USCG Master Captain Kevin Johnsen brings 40 years of local knowledge to every trip. Fish the reef for snapper, grouper, hogfish, and mackerel, hit deep wrecks for trophy black grouper and mutton snapper, or push offshore chasing sailfish, mahi-mahi, and wahoo. Shark trips target bull, hammerhead, lemon, and blacktip. Seasonal night snapper fishing runs July through August. Freedive for Florida spiny lobster August through October. Snorkeling and fish-and-snorkel combo trips available year-round. Max 6 guests per trip — families and all skill levels welcome. Mile Marker 53, Marathon..