Red Lake is a natural dam lake in Harghita County, Romania. It is located in the Hășmaș Mountains, on the upper course of the Bicaz River, and lies at the foot of the Hășmașul Mare Peak, near the Bicaz Gorge, at a distance of 26 km (16 mi) from Gheorgheni and 30 km (19 mi) from Bicaz.
Insider tip — Situated near the Red Lake (Lacu Rosu) in Romania's Harghita Mountains in Transylvania, this thermal site draws mineral-rich waters from the Carpathian geological belt. The surrounding conifer forests and striking drowned-tree stumps in the lake create an unforgettable backdrop. Waters here are traditionally valued for musculoskeletal and respiratory complaints by Romanian spa-goers.