Philippines New 7 Wonders of Nature Río Subterráneo de P. Princesa Philippines: They are to expand the international airport of Puerto Princesa to boost tourism The expansion of Puerto Princesa International Airport in Puerto Princesa will become a key element to improve the tourism industry of the Philippines, according to… Compartir: Posted on June 28, 2024June 30, 2024By: Paola Padilla