Offshore from St Andrews State Park, this sandy 'desert' island is fantastic for sunbathing, swimming and snorkeling. There are neither facilities nor shade: wear a hat and plenty of sunscreen. To get here, buy tickets for the Shell Island Shuttle at Pier Marketplace in the park; there's a trolley service to the boat. Snorkeling packages ($27) and kayak rental (single/tandem $55/65 per day) are available – the price includes your shuttle trip to the island. Check website for details and schedules.