Costa Rica's national parks offer a huge variety of hiking - the following are just two of the highlights. The Parque Nacional Rincon de la Vieja, north-east of Liberia in north-western Costa Rica, is a volcanic wonderland of cones, craters, lagoons, boiling mud pools and sulphur springs. The park can be explored on foot or horseback, and visitors can bathe in the hot springs. There are long-distance hiking trails in the Parque Nacional Corcovado, which is in the south-western corner of the Peninsula de Osa in the south of the country. The trails offer visitors the chance to spend several days walking through lowland tropical rainforest. Make sure you visit in the dry season, and keep your eyes peeled for wildlife. There are shorter walks around Monteverde and in the coastal Parque Nacional Manuel Antonio, south of Quepos.