Matunga- The R A Podar college will host the Indian Open Bouldering Championships today and tomorrow. This event is being organized by Girivihar, on of the oldest mountaineering clubs in Mumbai. Bouldering is a form of rock climbing that is performed without ropes and harnesses. The athlete climbs on boulders or rock formation, usually measuring less than 20 feet. Bouldering will make its olympic debut at Tokyo in 2020. About 60 male and female athletes will be participating at this event.