Trek to Mount Batur was planned by my husband. I am not a fan of treks or anything remotely unnecessarily exerting. I have no answer on why I tagged along with him, but suffices to say if I were to do it all over again, I won't. The husband enjoyed it though. Do go for it if you like to be woken up at 3 am to catch a car to some place where they feed you at an obnoxious hour before the trek, which in itself, starts in the dark. There is a guide for a group of three to four trekkers, and they give you a head torch for the trek in the dark. By the time you reach the top, you see the sun rise, which, if you are anything like me, would make you wonder why you could not see this from the comfort of your room.
Well, I have to begrudgingly accept some of the fascinating parts of the overall painful trek. The location in the picture has steam coming out of the rocks of this active volcano.