Agung was one of the hardest trek – climbs ever. Especially if u do it without sleeping in 1 day (14 hours). Its honestly way harder than we expected. It was super sleepery and we had to be concentrated on every step. We highly recommend to use walking sticks, especially down to ease pressure on your knees. And best option is to overnight in tents on POS2.
Wish u a pleasant day and may all beings be happy