In these 'brother caves' you can admire thousands of stalactites and stalacmites

Although the Santo António caves were discovered in 1955, and the Alvados caves in 1964, they are always mentioned together. They are very close to each other, but they are very different.

The Santo António caves have a monumental hall with small waterways and natural lakes, completely filled with stalactites and stalagmites. The Alvados caves have endless corridors which unexpectedly open to small halls and several natural lakes, the many tunnels interrupted by deep “Algares” which is very specific for this region.