Helicopter tour to the south-west of Sakhalin, on top of Mount Spanberg. It is a unique nature monument - 18 mountain lakes occupying a vast mountain plateau at an altitude of 800 m. The largest lakes are Mokhovaya and Osovaya (Rocky), the distance between them is only 600 m. Mountain springs are everywhere filling lakes and river beds, which flow from the mountain plateau. Both coasts of Sakhalin, western and eastern, are visible from the mountain. Picnic lunch is served with fresh seafood.