Casa do Zé Sapateiro Potholing.
This is the activity of exploring natural cavities. It is dedicated to the study of caves, rock formations and the underground world. That of most mere mortals are completely unaware of. The proposal is a visit to the Talismã cave in Taliscas, Penas. Distancing about 8 km from Casa do Zé Sapateiro. This is an impressive cave with what is probably the largest underground river in Portugal. And in terms of size, one of the largest in the country.