Shell Key Shuttle offers daily shuttles to Shell Key at 10:00 am, Noon and 2:00 pm. with return pick-ups at 12:15 pm, 2:15 pm and 4:15pm. Schedule may vary with seasons, call to confirm. Sunset Cruises Tues, Thurs, and Saturday (reservations required). Enjoy an Eco-Tour on the unspoiled barrier island: Great birding, shelling, snorkeling and dolphin and manatee watching on the island.