AirDog video crew joins Gusts and Janis to conquer sick MTB line in abandoned mine. This is Rummu, an abandoned soviet prison and open mine located in Estonia. Underground waters have flooded the quarry and the abandoned mine now is perfect for MTB downhill! AirDog team joins Gusts & Janis to conquer the mine hill. Shot on GoPro3+, Panasonic GH2. Aerials shots by AirDog drone - www.airdog.com Music: www.extrememusic.com