Access from:

- Leiria - IC2 and N362 to Alcanede. There take N361 and then Rua da Cooperativa to Barreirinhas/Pé da Pedreira. In Pé da Pedreira take Rua Chouso do Poço and follow to Algar.

- Lisboa - A1 to Circular Urbana de Santarém Dom Luís I in Santarém. Exit Circular and folllow to N3, N362 to Alcanede. There follow to Pé da Pedreira and take R. Chouso do Poço to the cave.

Discovered in 1985 by Mr. Joaquim Pena, following the dismantling of a limestone bench for the production of sidewalk stone, the Pena Cave - so named in honor of its discoverer - it's a very interesting cavity equity point of view, integrating the largest underground room known in Portugal (125,000 m³ in volume). From the top of about 40 m of unevenness, it opens to the look of who visits it, a magnificent underground landscape whose aesthetic aspect assumes an unusual dimension, through a huge profusion of speleothems.