Pristine beaches. Rugged jungles and canyons. Five thousand miles of Atlantic shoreline. Brazil is tectonically designed for adventure. That said, logistics can be challenging in a Portuguese-speaking country with a laid-back attitude about everything. To explore Costa Verde, which stretches 100 miles south from Rio de Janeiro to the colonial town of Paraty, sign up for BikeHike Adventures’ nine-day High Energy Extravaganza, a best-of sampler. The outfitter will help you navigate the mountainous hiking trails near Rio, raft Class II–IV Mambucaba River through the Atlantic rainforest, kayak the turquoise Mamangua fjord, and stand-up paddleboard off the white sand near Paraty. $2,899.