Palawan Underground River

Palawan Subterranean River

One of the New Seven Wonders of Nature, this underground river flows through a spectacular limestone cave system in Puerto Princesa's hinterland. Though primarily accessed from Puerto Princesa, it represents Palawan's extraordinary natural heritage and geological significance.

Things to do

• Underground River Boat Tour — A guided paddle through the 8.2-kilometer navigable cave system reveals towering limestone formations, stalactites, and stalagmites illuminated by headlamps.
• Cave Exploration and Spelunking — Venture deeper into the cavern system beyond the main tour route to discover hidden chambers and geological formations with experienced local guides.
• Mangrove Forest Kayaking — Paddle through the protected mangrove ecosystem surrounding the river's entrance to spot wildlife including monitor lizards, crabs, and tropical birds.
• Limestone Cliff Trekking — Hike the forested trails around the underground river area to enjoy panoramic views of the Palawan landscape and dense tropical vegetation.
• Wildlife Spotting Tour — Observe endemic species such as the Palawan flying lemur, saltwater crocodiles, and diverse bird species in their natural habitat within the protected area.
• Visitor Center and Museum — Learn about the cave's geological formation over millions of years and the unique ecosystem through educational exhibits and geological displays.

Food to try

• Kinilaw na Isda — Fresh raw fish cured in vinegar and citrus juice with local herbs and spices, reflecting Palawan's abundant seafood and traditional cooking methods.
• Tamilok (Woodworm) — A local delicacy consisting of shipworm larvae harvested from mangrove areas, served either raw with vinegar or cooked, prized for its unique texture.
• Palawan Lumpia — Spring rolls filled with local vegetables, shrimp, and sometimes cassava, served with sweet and spicy dipping sauces unique to the region.
• Tinola ng Manok — A warming ginger-based chicken soup made with fresh local produce and turmeric, commonly served in restaurants throughout Puerto Princesa and nearby areas.
• Seafood Grilling Experience — Fresh catch from local waters grilled over charcoal with minimal seasoning to highlight the quality of Palawan's seafood at waterfront establishments.

Local customs & good to know

• Book tours in advance through authorized operators — The underground river has strict daily visitor limits to protect the ecosystem, so reservations should be made days ahead, especially during peak season.
• Respect the sacred natural site status — Local communities view the cave as spiritually significant; visitors should maintain quiet reverence during tours and follow guide instructions regarding photography restrictions in certain areas.
• Hire local guides for authentic experience — Puerto Princesa-based guides possess intimate knowledge of the cave's formations, local folklore, and ecological details that enhance understanding beyond standard commercial tours.
• Prepare for wet and muddy conditions — The cave environment is cool and humid with slippery surfaces; wear appropriate footwear, bring a dry bag for valuables, and dress in quick-dry clothing rather than cotton.

Nearby

• Guimaras Island (Western Visayas) — 100 km
• Iloilo City — 103 km
• Sipalay (Western Visayas) — 109 km
• Islas de Gigantes (Western Visayas) — 134 km