Büyük Deniz Gölü or Lake Big Peshevit (English: Big Sea Lake), is a glacial lake in Yusufeli district of Artvin Province in Turkey.

Büyük Deniz Gölü ("Big Sea Lake" in Eng.)

Also, it is the largest lake in terms of surface area in the Kaçkar Mountains with 95500 m2 (23 acres).

[1] There is one walking route to the lake from Yaylalar village of Yusufeli.

It takes between 5 and 6 hours to reach to the Büyük Deniz Gölü.