Rincón de la Vieja Volcano National Park Parque Nacional Rincon de la Vieja (http://www.sinac.go.cr/ac...) is a park of 14,161 hectare covering a dry tropical forest region in the provinces of Guanacaste and Alajuela , centered around the Volcano, Rincón de la Vieja, and the surrounding volcanic and natural features. Sights include an extraordinary amount of interesting flora and fauna, as well as plenty of hot bubbling sulphurous mud pits and a little "mini-volcano."
