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Cerro Chato is believed to have first erupted 38,000 years ago during the Pleistocene period and last erupted about 3,500 years ago. One of the lava flows is now the route for La Fortuna Waterfall. The hill has two peaks, named Chatito ("little Chato") and Espina ("thorn"). A crater about 500 metres (1,600 ft) wide is filled with green water, making the Laguna Cerro Chato.
Cerro Chato Volcano, on the left, as seen from La Fortuna. Arenal Volcano is seen on the right.
Hiking
The Costa Rican government has closed the trail to Cerro Chato, making it illegal to climb. This law was passed in 1998 but was not enforced until 2017, encouraging hikers, tour operators and business owners to sell this attraction and tour. When it was open it was considered a difficult hike and only recommended for hikers in good physical condition. When it rains, the path becomes muddy and even more treacherous, especially when descending into the crater itself. The environmental damage the illegal hiking has caused is the main cause of the closure.
Crater Lake of Cerro Chato
Chato VolcanoCosta Rica
