My friends and I had the best time trekking to Mount Batur. We got picked up at our hotel by our fantastic driver, Agus. He took such good care of us, and gave us all kinds of tips on our drive. He has helpt us with other stuff along our trip too, such as driving, boats to islands nearby etc.
Our personal guide, Gede knew the mountain well, and showed us serveral shortcuts. When we arrived at the top he made us a great breakfast with banana sandwich, eggs, fruit, chocolatebar and hot chocolate! He offered to take photos of us, and showed us the hot steams and also fed the monkeys. We stayed at the top as long as we wanted. The view was AMAZING!
I will absolutely reccomend this trip to everybody. Gede will adjust the speed for your needs, and help you at the climbing areas. Just remember to bring good shoes and warm clothes (it is cold at the top before sunrise).