Ranu Kumbolo (2,400 masl) is a resting place with a lake, and has beautiful scenery especially in the morning when we look ant the sun rising through the chinks of the hills. There is a climber hut for resting and cooking. Here, we can make a tend and fishing. There is a time went ducks live here in a big numbers in the lake. Swimming in the lake is forbidden, be carefull went we step the bank of the lake, sometimes we can sank into the mud under the water. This is the first place we can spend to relax and have a long time to rest. We can stay here during the night and continue the journey in the morning.