Special Offers and Discounts at Grey Willow Yurts! Save £40! October 2 night midweek staysOctober two night midweek stay only £99! Save £40! 20% off October Half Term and Beyond. 20% off all weekend stays from Monday 21st October to Friday 1st November. Two night weekend stay only £135.20 Group BookingsBook all 3 Yabins and SAVE 5%! Grey Willow Yurts is a great place to get everyone together for a yurt glamping trip in Devon.