Ty Powdwr Dorms Sleeping Bag Shuffle Admin 3 years ago Ty Powdwr Dorms Sleeping Bag Shuffle http://www.karabiner.org Instructional video in the use of the Ty Powdwr hut dorms. Additionally, the dorms can be used for sleeping. Ty Powdwr is the Karabiner Mountaineering Club hut above Llanberis, Snowdonia.