Lake Paleostomi - a freshwater lake on the outskirts of the port city of Poti, located in Colchis lowland. The lake is more reminiscent of the estuary, as it is fueled by water flowing into it two rivers - Kaparcho and Fechory. Lake water is characterized by a high concentration of peat deposits and hydrogen sulfide.

Lake Paleostomi a total area of ​​18 m 2, reaches a depth of 3 m 2. Its main feature is that which until 1933 was considered a freshwater lake, but it turned out that it falls partly sea water from the Black Sea. Another is a lake located in the humid subtropical zone, is unique in that its water is almost never freezes in winter. Today this truly stunning body of water is a part of the natural reserve of Colchis.

Paleostomi Lake waters are home to about 90 species of fish, which makes it very popular among fishing enthusiasts who can fish here from the shore and from a boat or boat. Besides fishermen Paleostomi interesting and ornithologists who observe life here in the huge number of birds. Many tourists visit this lake simply to make a boat trip and enjoy the blue surface of the body of water.

In 1961, archaeologists at the bottom of the lake Paleostomi had traces of human settlements around II century. ad. In search of the ancient city in 1985 here it was sent a special expedition. Soon, at the bottom of the lake at a depth of 2 meters was found made of paving stones wall thickness of about 1 meter and 20 meters long. And in the north-western part of the lake were found fragments of yet another ancient settlement, relating to Article III-VII. As a result of archaeological investigations at the bottom Paleostomi it was raised a huge amount of pottery of different eras and even found the oldest human burial.