Petzl Demo night Get 15% off a Grigri! Demo night at Sydney Indoor Climbing Gym St Peters (6-8 pm) . We'll be demoing the Petzl GRIGRI belay device. We'll have Spelean Petzl Australia Distributor staff on hand to talk tech and demo the GRIGRI. Deals can be had in the gym shop too! Demo night 31/ August 2022 from 6pm.