A UNESCO World Heritage Site and one of the New Seven Wonders of Nature — a navigable subterranean river running 8.2 kilometers through a massive limestone cave system that children find genuinely awe-inspiring. Entry permits must be booked in advance through the City Environment and Natural Resources Office (CENRO) at PHP 150 per person (approximately USD 2.50-3); boat tours inside the cave cost an additional PHP 750-800 per person (approximately USD 13-14) and are guided with audio paddles. The cave is cool and dark inside with dramatic stalactite formations and roosting bats, which some younger or sensitive children may find startling — preview with photos beforehand. The full trip from Puerto Princesa city takes about 2 hours by road to Sabang; families should book the earliest morning slots to beat tour group crowds and oppressive midday heat. Strollers are not practical on the jungle boardwalk trail leading to the cave entrance; the path is uneven and roughly 800 meters long.

Address: Sabang, Puerto Princesa, Palawan, Philippines

Google Maps: Click here for directions

Cost: Paid $$