A small lake – Velnezers, also known as Chertoks, is located 10 kilometers from Aglona, in the pine forest. It gained its name thanks to the mysterious events surrounding this lake and its popularity among tourists due to its unique color. The lake is greenish with very clear water. This has become one of the most popular tourist attractions in Aglona region.

Address: Aglonas novads, Šķeltovas pagasts
Coordinates: 56.083717, 27.116471