The caves Grutas da Moeda is located in S. Mamede, in the council of Batalha, only 2 km away from Fátima. The caves can be visited to an extent of 350 meters and they are 45 meters deep beneath the entrance height. Temperature inside the caves is around 18º C all year round.

A visit to the caves Grutas da Moeda also includes the Environmental Interpretation Centre, where visitors can learn about geology of the region and of Portugal as whole, featuring a marvellous exhibit of Jurassic fossils and minerals, scientific videos, geological maps and other support materials.