Across the Andes Save
Patagonia by mountain bike.
http://www.bikeway.com.ar/   

BikeHike Adventures Save
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, innertubing, tree canopy tours and trekking. Custom adventures are available for groups of 2 or more people.
http://www.bikehike.com   

Rio Hiking Save
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/   

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