Birtvisi Canyon

Grey-brown, rounded rocks form many chains of hills and cliffs, canyons and ravines, constantly going up and down. The rock is a smooth, hard sand-gravel-marl; somewhat similar to the Elbe Sandstone Mountains, but not as sandy, but with larger stones/pebbles in it; partly karstified. Some climbers tried their hand at the vertical walls (some of these walls were covered in ivy from top to bottom).
A good starting point would actually be Tbisi; but the marshrutka sets off a kilometer earlier.
In the interior of the area there are only small paths; all are unmarked, sometimes difficult to find under the bushes and grass, and the castle can therefore only be found by those in the know. Streams appear and disappear.