Cueva del Búho (La Cueva del Agua Sector)

Cueva del Búho, in the La Cueva del Agua sector near Las Matas de Farfán, is a karst formation with damp galleries and active stalactites. The name comes from the owls that nest at the entrance. You reach it by hiking through coffee groves and dry forest; inside you'll find freshwater pools filtered through limestone. Bring a powerful headlamp, closed-toe shoes with solid grip, and clothes you don't mind getting wet. There are no official guides on site, so coordinate with a local who knows the route. Great for light spelunking and mineral formation photography. Respect the wildlife and pack out your trash.

A karst cavity carved by water erosion in the sierra, historically used as a temporary shelter by area farmers and charcoal makers. The name stems from the barn owls and owls nesting in its crevices. Today it serves as a reference point for hikers heading up to explore the cave systems and freshwater springs that supply Las Matas.