The 1,916 m high Rincon de la Vieja massif is a stratovolcano covering 400km2 formed as a result of a simultaneous volcanic activity of various eruption points, which grew and became a single mountain. At the top, nine eruption sites have been identified, one of them, Rincon de la Vieja, is active, but the rest are in the process of erosive degradation. Towards the south of the active crater there is a scenically very beautiful freshwater lagoon some 400m long. At the foot of the Volcano on the southern side is an area called Las Pailas, which covers 50 hectares. Here there are thermal springs, solfatara lagoons, orifices where jets of steam rise up and little mud volcanoes, where the mud is constantly bubbling due to escaping steam and sulphurous gases. Tour Description The Rincón de la Vieja massif is 1.916 meters high, it has 9 eruptive spots identified on its peak, some of which still have fumaroles activities. The park contains hot springs which give raise to very hot mountain stream and geysers which release jets of stream specially during the rainy season and mude cones in all shapes and sizes. Several waterfalls exist throught the park also it contains diverse habitats, produced by the differences in altitude and rainfall, the effect of volcanic eruptions and the type of slope. Enjoy the active Rincon de la Vieja Volcano as you hike through pristine trails. The tour starts the moment that you depart from your hotel in a comfortable air conditioned van. After a pleasant ride through northern Guanacaste you will arrive at Rincon de la Vieja National Park. The Park plays an important role in the conservation of river basins. In this area Nature gives birth to 32 rivers, including Colorado and Blanco rivers. Another attraction in the park is the steamy mud pots product of the constant volcanic activity. You will be close enough to feel the heat and the steam that rise from these formations. Hiking up the Rincon de la Vieja Volcano is a great experience for the entire family. As you hike the trails you will be able to see the exotic Guaria Morada (Cattleya skinneri), this orchid is Costa Rica 's national flower. This is a 2½ hours guided hiking tour where your guide will point out interesting geological formations as you walk through the national park and he will answer any of your questions about the animals or plants that you will encounter during the tour. Includes: Ground transfers, entrance fees, typical lunch, naturalist guide, snacks & bottled water. What to Bring: Sunscreen, sunglasses, insect repellant, passport and camera.