Is close to Praia da Adraga and is a result of corrosive rainwater action through existing fractures in the limestone rocks, combined with the erosive action of the waves, which created a labyrinth of caves, caverns and enormous cracks.
It is said that the Romans believed there was a Triton playing a horn made of conch at the bottom of the hole Fojo, that has about 90 meters.
In fact, it would be the noise caused by the waves.
But at the time it was sent an embassy to the Emperor Tiberius (from the year AD 14:34) to report the phenomenon.
A bumpy ride but well worth it with breath taking views