Mount (Gunung) Kerinci is the highest volcano in Indonesia. The climb is pretty straight forward once you find the trail head at the base of the mountain, just keep going up. I had some help from some Indonesian students, but you could also hire someone to drop you off at the trail head. The peak is generally climbed in two days, camping just above the tree line, and then ascending the rest of the way in the early morning darkness to arrive on the summit by sunrise. If you reach the crater rim while its still dare you may be able to see some lava in the vents at the bottom of the crater.