Tourists in a rowing boat entering the Puerto Princesa underground river, the New Wonder of the World, Puerto-Princesa Subterranean River National Park, UNESCO World Heritage Site, Palawan, Philippines, Southeast Asia, Asia

travel destination photography colour image horizontal entering puerto princesa river national park unesco world heritage site palawan philippines southeast asia asia scenics puerto princesa subterranean river national park natural landmark nature rock rock formation limestone water large group of people tourism tourist passenger men women female male adult travel exploration discovery journey transportation cave boat filipino culture rear view three quarter length arrival anticipation reflection tree outdoors day colour color image color outside places of interest group scenery scenic scene scenes the natural world reflecting reflected transport unesco world heritage sites unesco world heritage site world heritage sites tourists holiday maker holiday makers on holiday