Veľká Richňava (Rychňavské jazero)
A historic mining reservoir about 3 km south-west of Banská Štiavnica, originally built to supply water for the Štiavnica mines and one of the deeper tajchy at 21 m. By the dam at about 7 m there is a 'sculpture' made of an old TV and a toilet; the lake holds many pike and freshwater mussels, and the bottom is muddy with sunken wood. Nearby tajchy are also dived.
depth: 0–21 m