Caves in Papua New Guinea

		Kavakuna Cave is second largest and deep limestone cave in P.N.G. Sinkhole (doline) appeared suddenly when underground was carried away by undercurrent. We descended this hole with single rope tecnique. Ropes were needed at least 500 meters, because of its depth were 400 meters plus.
When we reached the bottom, then we began to climb twin waterfall. Cave appeared on the top of this waterfall. We made several tyrolean bridge, then made traverse inside this cave.