Hiking to Hule Volcanic Lagoon. Popularly referred to as the Hule Lagoon, this beautiful lagoon with 55 hectares (136 acres) of diameter is located at the base of the Cerro Congo Volcano, 11 km (6.83 miles) from the famous Poas Volcano. This area is renowned for its excellent trekking trails due to the variety of scenery and terrain, from clay, to dirt, volcanic rock, and grasslands in a rainforest at 800 m above sea level. Book and Save 15%! Hiking to Hule Volcanic Lagoon.