This artful place has been hosting travelers since 1975. Homey stone cabins, aging dorms and decent campsites (BYO gear) are dotted around grounds that are dominated by fruit trees and an unbelievably gigantic cactus. No meals are offered, but there's a good guests' kitchen. Staff can hook you up with dependable local guides for hiking, camping or fishing and there's an impressive library.
It's located near the riverbank, a 10-minute walk beyond the town center. If arriving by bus, the driver will normally be happy to drop you off.