Enjoy shelling, sunbathing, snorkeling, bird & dolphin watching on unspoiled Shell Key, a pristine barrier island south of Pass-a-Grille and St. Pete Beach via a 10 minute boat ride aboard a Coast Guard inspected vessel. $25 for adults, ½ price kids under 13, plus tax. Dog friendly Sunset /Dolphin watching cruises, same price. ShellKeyShuttle.com