At a depth of 1942 meters
If the linked has been clicked you would learn more about the place called 1942 meter (interesting facts; sightseeing; activities)
So, the facts:
Fact # 1: Baikal is the deepest freshwater lake in the world.
Fact # 2: In 1893 at the point with geographic coordinates 53°14'59" N. lat. 108°05'11" W. d. the expedition carried by Chief Directorate for Navigation & Oceanography of Soviet Union under the leadership of L. G. Kolotylo and I. A. Sulimov determined the maximum depth – 1642 meters.
Fact # 3: In 2009 Mir-2 deep submergence vehicle determined the maximum depth mark (1637 m or 5370 ft) – near the Olkhon island.
Fact # 4: After the diving of bathyscaphe Mir-2 at a depth of 1637 meters, it was established that the bottom of the lake Baikal is smooth and almost perfect.
Were to go and what to do:
During the dive Mir-2 carried out an underwater survey, so now each visitor of the exhibition under the name "Bathyscaphe", has an opportunity to take a virtual dive to the bottom of the deepest freshwater lake in the world, this virtual trip is interactive, that allows visitors to observe the hidden world of the lake Baikal from different points and in several directions.