A sanatorium Ahmanka is situated in 82 km from Tyumen, one of the most modern and largest West-Siberian cities. Mud from the lake Ahmanka which is situated in 54 km from Tyumen is well-known all over the region. A great scientist Yakovlev discovered Ahmanka’s mud in the 40s of XX century and started to explore healing putrid mud. The mud layer was more than 4 meters.