Accessible via the road to Tris Eklesias and a gravel track, gigantic, worth seeing, even without water. Railings have now been installed there. When we first visited in 2022, they weren't there yet - you still needed a lot of courage to walk the narrow path along the edge.
There is a large colony of griffon vultures (the largest in Europe) that breed in the rocks to the right of the gorge - you can watch them for hours. For the really tough, there is also a way to descend through the canyon.