"An extinct volcano in the Gunung Sewu UNESCO Geopark, climbed at dawn"
Nglanggeran Ancient Volcano, Yogyakarta Overview
Nglanggeran is the eroded remains of a volcano that stopped erupting tens of millions of years ago, now part of the Gunung Sewu UNESCO Global Geopark. The climb takes an hour or so, through gaps between the boulders with ropes and ladders in the tight sections. Most people start before dawn for the sunrise. Of everything on this list it is the one that asks for real physical effort.
