![PALAWAN, PHILIPPINES-MARCH 27, 2016. Boats at cave of Puerto Princesa subterranean underground river on March 27, 2016. Palawan, Philippines. It's on Stock Photo - Alamy PALAWAN, PHILIPPINES-MARCH 27, 2016. Boats at cave of Puerto Princesa subterranean underground river on March 27, 2016. Palawan, Philippines. It's on Stock Photo - Alamy](https://c8.alamy.com/comp/PD183H/palawan-philippines-march-27-2016-boats-at-cave-of-puerto-princesa-subterranean-underground-river-on-march-27-2016-palawan-philippines-its-on-PD183H.jpg)
PALAWAN, PHILIPPINES-MARCH 27, 2016. Boats at cave of Puerto Princesa subterranean underground river on March 27, 2016. Palawan, Philippines. It's on Stock Photo - Alamy
![File:Puerto Princesa Subterranean River National Park, One of The New 7 Wonders of Nature, Palawan.jpg - Wikimedia Commons File:Puerto Princesa Subterranean River National Park, One of The New 7 Wonders of Nature, Palawan.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/a/af/Puerto_Princesa_Subterranean_River_National_Park%2C_One_of_The_New_7_Wonders_of_Nature%2C_Palawan.jpg)
File:Puerto Princesa Subterranean River National Park, One of The New 7 Wonders of Nature, Palawan.jpg - Wikimedia Commons
![Cave palawan puerto princesa subterranean river philippines immagini e fotografie stock ad alta risoluzione - Alamy Cave palawan puerto princesa subterranean river philippines immagini e fotografie stock ad alta risoluzione - Alamy](https://c8.alamy.com/compit/2e3n301/splendida-laguna-l-inizio-del-fiume-sotterraneo-navigabile-piu-lungo-del-mondo-puerto-princesa-palawan-filippine-2e3n301.jpg)