The Mamai River gorge, located in the southern part of Lake Baikal, in the Khamar-Daban mountain range, is known far beyond the borders of the Irkutsk region and the Republic of Buryatia. It has long become an international tourism cluster. The terrain of this amazing area is considered the most extreme and most suitable for off-piste snowboarding, skiing and snowmobiling. Freeriders, skiers, boarders, and snowmobile riders from all over Russia and abroad flock to the boats during the five-month skiing season. The snow cover allows everyone to enjoy the white sparkling snow from November to March inclusive. Often in November you can observe a snow cover thickness of up to one and a half meters, and by mid-winter it can reach in some places more than 5 meters. Therefore, the valley of the Mamai River gorge is considered the most suitable place for opening the early season. In the gorge of the Mamai River, surrounded by the Khamar-Daban ridges, its own special microclimate has formed. It is characterized by “mild”, comfortable winters (temperatures usually do not drop below 15 degrees) and the absence of strong winds (up to 2 m/s). The terrain for skiing on Mamaia is excellent: sufficient slope, cushions, rolling pins. The most pleasant thing is to ride along the couloirs.