Raja Ampat is a favorite tourist destination in West Papua. In addition to its stunning underwater beauty, this district in West Papua also has a river with clear blue water, hidden in the middle of a beautiful forest. Kali Biru is located in Warsambin Village, Teluk Mayalibit District, Raja Ampat. To get to this destination, visitors must rent a boat to local residents. The distance by boat is about 15 minutes, then we have to trek along the upstream and into the forest for about 30 minutes. Along the way, we will be accompanied by beautiful and beautiful scenery until we see a small hidden paradise at the end of the trip.