Many trails lead to this place, with a geological phenomenon that results in a natural amphitheatre. Inside the Fórnea there is the Cova da Velha, a cavity with a spring that flows down to the Fórnea Brook.
Discovered in 1955, they are part of a set of caves that exist in the Minde hill. They are configured like a gallery/room and they have a natural chimney. They are filled with stalactites and stalagmites, the largest room has 6000 m2 and they may be visited.
Discovered in 1964, they are located on the Minde hill, in an area where these formations abound. They are configured like a gallery/room/well. A special note to the stalactites, stalagmites and illumnitaed lakes in the interconnected rooms.
Discovered in 1947, these are the largest caves in Portugal. They are configured like a gallery/room/well and their formation is due to erosion and to tectonic changes. There are subterranean lakes and rooms with lovely calcareous formations. There are two elevators and a depth of 110 metres. Here one finds the Grande Lagoa (Large Lagoon), formed by the Rio Negro (Black River), a subterranean water course that, in the winter, forms the Mira de Aire Lagoon.
The Arrimal Lagoons are surrounded by calcareous wells. The Lagoa Grande (Large Lagoon) uses the wtaer of the Espinho valley and becomes quite important in times of drought. Both lagoons are surrounded by pyrenean oaks, a species that is rare in this region.
The Arrimal lagoons are surrounded by calcareous wells. The Lagoa Pequena (Small Lagoon), located by Arrimal, gets the water from its own basin. Both lagoons are surrounded by pyrenean oaks, a species that is rare in this region.
