The lake near Karamurat village, 30 kilometres north-west of Mudurnu, is enclosed by mountains on three sides and carries the status of a natural site.

It is fed both by springs rising from its bed and by water running down from the valleys.

Getting there

Access
Thirty kilometres from Mudurnu.Checked: September 15, 2026

When to go

Climate
Across Bolu as a whole, monthly mean temperatures run from 0.6 °C in January to 20 °C in August; the mean stays between 15 and 25 °C in June, July, August and September; rainfall is heaviest in May (61 mm) and lightest in August (24 mm). Long-term means for 1929-2025 from the Turkish State Meteorological Service (MGM).Checked: September 22, 2026