The most beautifully coloured tajch (a historic mining reservoir) is without doubt Veľká Vodárenská, with its stunning azure water.
In summer it is a place for swimming and relaxing (an informal nudist beach has sprung up on the far side), and in winter for cold-water swimming. A little above Veľká lies Malá Vodárenská, hidden in the forest – one of the smallest tajchs in Banská Štiavnica.
