Kolethra Springs of Aghios Vlassios

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The Kolethra Spring is located on the base of an imposing rock that hides in it a cave that usually attracts cave divers. According to references, the spring was explored to its first 300 meters in length during 1989 & 1990 by the cave divers Mr. Kompiliris Dimitris and Mr. Spinos Yiannis, members of the Hellenic Speleological and Exploration Club.

Since then many missions have taken place during 2012. During 2013 though, the Greek cave divers after many attempts managed to reach the Hellenic diving record by exploring the cave to the unbelievable length of 1500 meters. The divers were: Komninos Boutaras, Michalis Spirakis, Fontas Pitsinelis and Giorgos Tzavelas. The cave is quite spacious in general with large halls and big aisles in height and width with an average temperature of 12 celsius degrees all year around. Its basic direction is to the north. The cave diver does not have to pass through tight passages or deal with a complex cave interior as the route follows a basic line between the rocks. The only two difficulties are the permanently low visibility that changes depending on the season and the rainfalls between two and five meters as well as the continuous depth change that is approximately 25 meters or lower offering quickly to the diver some minutes for the decompression.

The cave has fauna and flora mainly up to the part where the sun can reach and it is common to meet small eels and fish. There, the local cultural club has created a small recreation area from where a path of 300 meters starts moving in parallel with the stream and passing through old artificial channels that still send water to the water mills at the end of the route.

The Kolethra springs are an ideal place to enjoy the beautiful nature, to camp, to stay in the nearby villages and it will always be a challenge to the brave cave divers.