Veľké Hincovo pleso is the biggest and deepest mountain lake of glacial origin in the High Tatras, Slovakia. The maximum depth is 53 metres. Its surface remains frozen for around 270 days per year.
Wikipedia https://en.wikipedia.org/wiki/Veľké_Hincovo_pleso
More Information http://www.vypadni.sk/sk/velke-hincovo-pleso
Address 05985, Slovakia
Coordinates 49°10'44.664" N 20°3'33.841" E