Rio Hiking - Specializing in ecotours to Rio de Janeiro's mountains; Sugar Loaf, Corcovado, Tijuca Peak and Pedra da Gavea. Tropical rainforest trails. - http://www.riohiking.com.br/
BikeHike Adventures - Multisport adventure travel throughout South and Central America. Destinations include Costa Rica, Belize, Ecuador, Peru and Chile. Trips combine a variety of activities including mountain biking, whitewater rafting, rock climbing, horseback riding, inner - http://www.bikehike.com
Across the Andes - Patagonia by mountain bike. - http://www.bikeway.com.ar/