Puerto Princesa Subterranean River National Park
Park Underground river and limestone karst national park
Puerto Princesa Subterranean River National Park on Palawan contains a navigable underground river flowing through limestone karst to the sea. Tourists book guided boat tours through cave passages and inspect coastal karst scenery.
Puerto Princesa Subterranean River National Park protects a limestone karst landscape on the island of Palawan and the subterranean river that flows beneath one of its coastal limestone ridges. The river emerges at the sea and runs through large caverns with extensive stalactite and stalagmite formations.
Visitors most commonly take a guided boat tour of the cave’s navigable section, seeing sculpted cave formations and large chambered passages. The park also includes coastal mangroves, a shoreline fringe and adjacent lowland rainforest that together support diverse wildlife.
The site was inscribed as a UNESCO World Heritage Site in 1999. The underground river system has been measured at roughly 8.2 kilometres in length, though the part open to public boat tours is shorter and controlled by park authorities for safety and conservation.
The park is on the island of Palawan, approximately 80 km north of Puerto Princesa city and is accessed from the coastal village of Sabang on Palawan’s western coast.
- River length and tour: The subterranean river includes a navigable cavern section of about 8.2 kilometres in total length; typical visitor boat tours cover the first 1.5-2 kilometres inside the cave.
- UNESCO listing: Designated a UNESCO World Heritage Site in 1999 for its karst landscape, cave system and biodiversity values.
What to See #
- Underground river cave: The underground river cave system with extensive limestone formations and a navigable section of the river that is visited by guided boat tours.
- Coastal and mangrove zone: Coastal karst cliffs, mangrove fringe and a short beach area at the river mouth that are part of the park's shoreline zone.
- Forest and wildlife: Lowland rainforest and karst forest surrounding the cave that support endemic and migratory wildlife.
How to Get to Puerto Princesa Subterranean River National Park #
Puerto Princesa city is the usual gateway; Sabang (the park’s dock) is about a 1.5-2 hour drive northwest of Puerto Princesa by van or bus. Most visitors join an organized day tour from Puerto Princesa that includes transport, boat transfers, and permits.
Tips for Visiting Puerto Princesa Subterranean River National Park #
- Book the underground river boat tour through an accredited operator from Puerto Princesa City in advance-Sabang departures are limited and often sell out.
- Choose the earliest tour (usually first boat around 8:00am) to avoid afternoon crowds and passing local fisherman boats.
- Bring waterproof shoes: the Sabang pier and boat transfers are wet and slippery; lockers at the dock are limited.
Best Time to Visit Puerto Princesa Subterranean River National Park #
Best visited in the dry season (November-May) for reliable boat transfers and calmer weather. Early-morning tours beat the crowds.
Weather & Climate near Puerto Princesa Subterranean River National Park #
Puerto Princesa Subterranean River National Park's climate is classified as Tropical Monsoon - Tropical Monsoon climate with consistently warm temperatures year-round. Temperatures range from 20°C to 30°C. Abundant rainfall (1913 mm/year), wettest in September with a pronounced dry season.
January
January is warm with muggy conditions (dew point 23°C). Light rainfall and partly cloudy skies.
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February
February is warm with muggy conditions (dew point 22°C). The driest month with just 16 mm and partly cloudy skies.
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March
March is warm with muggy conditions (dew point 23°C). Light rainfall.
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April
April is the warmest month with muggy conditions (dew point 23°C). Moderate rainfall (50 mm).
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May
May is the warmest month with stifling humidity (dew point 24°C). Significant rainfall (168 mm) and partly cloudy skies.
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June
June is warm with stifling humidity (dew point 24°C). Heavy rain (242 mm) and mostly overcast skies.
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July
July is warm with stifling humidity (dew point 24°C). Heavy rain (268 mm) and mostly overcast skies.
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August
August is warm with stifling humidity (dew point 24°C). Heavy rain (269 mm) and mostly overcast skies.
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September
September is warm with stifling humidity (dew point 24°C). The wettest month with heavy rain (273 mm) and mostly overcast skies.
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October
October is warm with stifling humidity (dew point 24°C). Heavy rain (234 mm) and mostly overcast skies.
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November
November is warm with stifling humidity (dew point 24°C). Heavy rain (220 mm) and mostly overcast skies.
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December
December is warm with stifling humidity (dew point 24°C). Significant rainfall (120 mm) and mostly overcast skies.
