If you enlarge this photos and know Greek alphabet you'll see sign on the plaque : AGIASMA APOSTOLOU PAVLOU. If you are Christian and beliver... don't miss this place!
We almost missed this little underground church and found it only by luck. There are no tourist around, even not a local people...only a church with a plaque in small park and well.
It is an underground corridor of about 20 km in length, which has been carved on the natural rock and ends in a rectangular underground chamber. It is probably an ancient burial construction that, during the Byzantine period, was rearranged into a church. The chamber's walls had been painted during some period of time, but a large part of these paintings was destroyed by humidity. Tradition says that the Apostle Paul was teaching at Ierissos at the time when haunted, and with his life in danger, he went into a hole of the earth. Then, passing through an underground corridor, he arrived at Kassandra and came out at the chamber of the "agiasma". If you want to visit that underground chambers you have to walk on all 4 in that corridors... not for ones who are claustrofobic!
In the 14th century in the area there were many monastery dependencies of Athos. In 1407 Ioannis Palaeologos allotted the region of the present village to the monastery of St. Paul of Mount Athos. As it appears it was at that time that the Byzantine Tower was built, that is preserved until our days. There are also ancient church on that site. Very romantic place where history meets blue sea and places for hedonism.