Tenorio Volcano Area

The scenic Tenorio Volcano, which stands 6,287 feet (1,916 m) tall, is considered dormant. Yet the surrounding terrain is dotted with geothermal activity in the form of thermal hot springs and geysers. The area is perhaps best known for the mystical Rio Celeste, a fascinating river with a unique and strange blue hue, generated from a chemistry of sulfur and calcium carbonates.

Tenorio National Park is part of the Tenorio Volcano and Miravalles Protected Zone, which includes a second dormant peak, Miravalles, to the west. At 6,653 feet (2,023 m), Miravalles is the tallest peak in the Guanacaste region. This volcano still produces enough heat to supply the local power plant with energy.