In Achentrias the visitor can admire the many caverns of the Asterousia mountains.
The most typical examples are the Archontospilios cave, in Agios Nikitas, and Chirospilios cave.
The cave of Archontospilios has a very high altitude and it requires climbing in order to reach it. Those who dare it will admire the great view of the sea and the imposing rocky landscape. The cave is between Maridaki and Agios Nikitas.