Macocha Gorge

The Macocha Abyss , also known as the Macocha Gorge, is a sinkhole in the Moravian Karst cave system of the Czech Republic. The sinkhole is deep, which makes it the deepest of its kind (light hole type) in Central Europe. It is a popular tourist attraction for casual visitors to the region, in addition to cavers and advanced technical divers.