Linear trail and cycling race. Unmarked route avoiding asphalt roads. 50 and 100km running 100km cycling. Cut-off time 24h. It is a hard challenge that requires experience, motivation and good physical fitness. -----------— What to expect: the true winter adventure, frosty air, and tranquility of the "white silence" in the woods. The route is unmarked. There are 10 control points and recommended track. There are also road sections forbidden to use (grade M highways and grade P regional roads). Navigation is easy, but basic experience of navigation using a map or GPS is encouraged. Start 9:30 - village Vyazynka, Minsk region (J. Kupala museum) Intermediate cut-off time 10h (19:30) - approximately halfway, village Zhukovka, Minsk region: refreshment point with fireplace, hot food, opportunity to abandon the race (there are buses to Minsk running hourly from Zhukovka) Finish before 09:30 on 28.01.18: fireplace and hot tea in Valeryanovo park, Minsk (closest tube station Uru??a) The trail will be different from the last year. The less snow there will be, the more abandoned forest roads will be used. Passage of the check points will be reported by participants either by taking "selfie" at the control points or the track registered and published via https://www.strava.com/ Participant's bag includes: electronic track, map of the route, photographer's work, tea, snacks and hot food during the race, transfer of bags to finish line, finisher's medal.