Puerto Princesa Underground River
The underground caves stretch for more than 24km and they contain the last 9km of the Cabayugan River before it spills out into the Philippine Sea. The caves are a breathtaking combination of stalactites, stalagmites, caverns, waterfalls, domes and rivers. Major new discoveries have been made as recently as 2010.The best way to see the caves is via a boat from Sabang
