Marco Island Eco Tours offers guided eco tours in the 10,000 Islands where participants drive their own 2-seater Craig Cat boats to explore bays, creeks, spot dolphins, manatees, ospreys, go shelling on deserted barrier islands, and enjoy gulf-side lunches. They provide various tours including wildlife sightseeing, shelling, dolphin watching, birding, sunset eco tours, private fishing and shelling trips, and kayak/SUP options.