Stenciled hands in various shades of oranges and red paint on a cave wall.

Argentina’s Cueva de las Manos (the Cave of Hands)

The Cueva de las Manos is a UNESCO World Heritage Site where stencils of hundreds of human hands, guanacos, and abstract forms cover the walls in orange, red, and yellow tones. The oldest date from around 7370 b.c. and represent hunter-gatherers from immediate postglacial times.

View across Lago Lacar to San Martin de los Andes, Argentina.

Visiting the Resort Town of San Martín de los Andes

San Martín de los Andes has become one of the lakes district’s most fashionable resorts. Nestled in the hills near Lago Lácar, it owes its appeal to its surrounding scenery, the trout that thrash in Parque Nacional Lanín’s lakes and streams, and the ski boom that began at nearby Chapelco in the 1940s.

Volunteers will usually find monkeys, kinkajous, felines, other mammals, macaws, and parrots at Merazonia.

Volunteer with Merazonia in Ecuador

Merazonia is a dynamic rescue and rehabilitation center for trafficked and abused Amazonian animals. Volunteers work with animals under strict guidelines and help maintain the grounds and enclosures. Learn more about the work, its requirements, and how to apply.

Visitors explore exhibits in a room dominated by large dinosaur skeletons.

Neuquén’s Dinosaur Triangle

Where there’s oil, there are dinosaurs, and Neuquén’s sedimentary steppe is one of Argentina’s late-Cretaceous hot spots. This triangle of sites near the provincial capital makes an ideal (if long) full-day excursion.

Jatun Sacha volunteers can choose from sites in the Amazonian or Coastal rainforest, Andean forest, or on the Galapagos Islands.

Volunteer with Jatun Sacha in Ecuador

Jatun Sacha (JS) is a self-sustaining nonprofit organization that owns and maintains five private nature reserves working closely with communities to “promote the conservation of Ecuador’s biodiversity”. Volunteers work eight-hour days and can choose from sites in the Amazonian or Coastal rainforest, Andean forest, or on the Galapagos Islands.