With the 180-mile-long Belize Barrier Reef, this laid-back country has long been a heaven for divers and snorkelers. It just got better with the world’s first lodge-to-lodge paddleboarding trip. On thisguided adventure with island expeditions, through Belize’s 118,000-acre Southwater Caye Marine Reserve , you’ll paddle four to eight miles per day through calm turquoise waters, jumping off to snorkel where spotted eagle rays and barracuda glide in reef areas too shallow for motorboats. You’ll visit with researchers at Smithsonian’s Carrie Bow Caye Field Station to learn about reef biology, stop for a beachside fresh-catch lunch at a Garifuna fishing camp, night-snorkel at Southwater Cut (a deep channel where the coral blooms after dark), and sleep in rustic overwater bungalows on tiny Tobacco Caye and in the seclusion of private Southwater Caye, 12 acres ringed by white sand in the Belize Barrier Reef. $1,829 for six days.