[1] The Olenti has its sources east of lake Shalkar, in the area between the Caspian Depression and the Mughalzhar Hills (Pre-Ural Plateau).

Then the Olenti bends southwards near the village of Saykudyk in Akzhaik District and flows almost straight in that direction.

Finally it divides into shallow arms and its waters sink in the sand shortly before reaching lake Tuzdy to the SSE.

[2][3] The river valley is narrow in the upper reaches, widening to 200 m (660 ft) in its middle and lower course.

[1] The main fish species in the Olenti include carp, bream, pike and perch.