Iwaonupuri (back of Mt Annupuri) in Snow talk, trip reports, Japan avalanche & backcountry Posted November 19, 2013 Going Up! Riding Dow! Going Home! Best attempted when visibility is good. The views are way more awesome too, especially if you ride down (towards Goshiki Onsen) an hour or two before the sun goes down. It's a short trek back towards Annupuri. from Goshiki onsen (30 minutes max), hike up over the ridge and drop back into one of the bowls that will bring you back to the base of the Annupuri gondola.