Climbers practice on the rock cliffs of Purba Volcano Nglanggeran, Patuk, Gunungkidul, DI Yogyakarta, Sunday (6/28/2020). The Nglanggeran Purba Volcano geoheritage tourist destination that offers lightweight climbing and natural rock climbing paths has begun to be reopened by implementing strict health protocols to anticipate COVID-19 transmission after three months of closure. BETWEEN PHOTOS / Hendra Nurdiyansyah / aww.- .