The cave Okso Latsidi is located in the area of the village Sitanos and it is part of an extended cave complex that expands for more than 6,000 meters in the subsoil of mountainous Sitia. It is one of the richest carst formations in Crete.

Another important cave of the province is the cave of Peristeras. It is located 2km east from the village Karydi, in the area of Platyvolas, in an altitude of 540 meters. It has a rich rock decoration and 170 meters of explored routes. Here too, signs of human presence were discovered, dating back to the Neolithic period.

In an altitude of 80 meters, about 500 meters northwest from the area of Rousolakkos-Palekastro and close to Chiona beach, there is the visible opening of the cave of Petsofa, which was named after the hill. It is a very small cave (about 3x5m) with a large archeological importance, as here many broken amphoras as well as a number of inscriptions have been found.  

The mountainous areas of Sitia, in comparison with other mountainous areas of Crete, do not have intense formations. However, due to the limestone composition of its rocks, the rain and river water has created an extended surface carst. In some places, the carst is quite impressive and has formed hundreds of limestone tips that look like a meteorite rain with uneven shapes.