Echosounding and videofootage of the bottom of Karymskoye lake

Echo-sounding of Karymskoye lake. Karymsky volcano in background.	Specially designed underwater videocamera	3D map of the lake (team-work with Sergey Ushakov and Alexander Manevich).
Output of thermal water on the bottom. Depth 60 m.	Bacterial mats around output of thermal water. Depth 60 m.	Larvaes of Chironomidae on the bottom.Depth 20 m.