The complex also presents a walking trail of approximately 2km that takes visitors past many different and typical karsic geological phenomena of rare beauty. One of these attractions is the Amiais stream. This unique stream flows at the surface throughout hundreds of meters, suddenly disappearing into the ground forming an interesting geological phenomenon known as a Swallow Hole. While deep underground, water then passes through 200 meters of underground hidden galleries resurfacing at the Lapa da Canada. During this underground journey it gorges past different levels of galleries concealed within the limestone plates. After upwelling, water runs down the Fluvio Karsic Canyon: a valley with sharp and steep cliffs molded by millions of years of water erosion. It is in this complex system of caves that lays a very important breeding habitat for 12 different species of cave bats.
The Caves of Coin Scientific and environmental interpretation Centre (CICA gm) is characterized by being an informative, didactic and scientific space. It is a place where students, tourists and public in general can find answers to the mul ...
The Coin Caves (Grutas da Moeda) are located in São Mamede, municipality of Batalha. Its discovery happened in 1971, as two huntsmen that were chasing a fox, saw it enter by one natural hole under the bushes. Moved by curiosity, they decide ...
The salt-pans can be found 3 km away from Rio Maior, in a valley at the bottom of Candeeiros Mountain. Surrounded by trees, vineyards and other cultivated lands, they are considered a natural wonder, once the sea is about 30 km away. The en ...
Lapas Caves are a network of artificial galleries developed beneath the houses of the village with the same name. This urban area has been raised in a small elevation corresponding to a fluvial terrace of Almonda river, from the Quaternary, ...
The paleontological site of the dinosaurs in Pedreira do Galinha, discovered in 1994, is located in Serra d''Aire. This deposit is one of the most important in the world record, presenting hundreds of sauropod footprints.
Distance: 4.5 km; Duration: 3h; Difficulty: Difficult. Location: Aldeia de Chãos Starting point: Cooperative Parking Terra Chã gps-wgs84 coordinates: 39.417998, -8.920365 The natural park of the Aire and Candeeiros mountains are the most i ...
Circular route starting and ending in the Municipal Park. Mixed floor type, 6 km predominantly on a bike path and about 3 km on a dirt track, from the Health Center to the Marinhas do Sal village. Arriving at the Salt Flats of Rio Maior, y ...
From the geological point of view, the saltworks are located in a diapiric valley. A diapir is a low density rock mass, relatively mobile, crossing other denser rocks. This vertical movement from bottom to top, is made along faults and allo ...
