Kulunda, the district capital, lies just 1.5 kilometers (0.93 mi) from the northeastern shore of the lake.

[3] Shchekulduk is located in a residual depression of the Kulunda Plain.

It has a roughly polygonal shape, with a length of almost 4 kilometers (2.5 mi) from west to east.

The lakeshore has a small peninsula on the northeastern side that forms a small bay named Bukhta Udachi where there is tourism infrastructure for visitors.

[3][2] The lake is surrounded by flat steppe landscape, cultivated fields and urbanized areas.