Stargazing in Philippines

Puerto Princesa Subterranean River National Park: Bortle 1
Balbalasang-Balbalan National Park: Bortle 2
Mounts Iglit–Baco National Park: Bortle 2
Aurora Memorial National Park: Bortle 3
Hundred Islands National Park: Bortle 3
Bataan National Park: Bortle 4
Mayon Volcano Natural Park: Bortle 4