At the time of a vacation Cahyo's in the town of Probolinggo. I found a river located in the middle of rice fields. I think the river is quite mnegerikan also because the river does not flow like a river inin in general, but this river flows into a hole or artificial cave that is located right in the middle of the river. Can not imagine if someone did not just accidentally fell and dragged the river flows into the hole. Be careful friends.
