Combine a UNESCO-listed underground river boat tour with an 800-meter seaside zipline and a slow mangrove boat trip in one full day from Puerto Princesa. This 8–10 hour excursion balances adrenaline and natural history with practical logistics and local insights.
More ways to explore the area's outdoor wonders
You push off from a crowded jetty and the water takes you past wooden banca bows and fishermen mending nets. The town of Sabang slides astern, a fringe of palms and low concrete houses, while the limestone ridges of the Puerto Princesa Subterranean River National Park rise like folded sheets of stone ahead. In a single day you move from sea-spray to cave hush to high, wind-thinned air: a zipline 800 meters long, a guided boat through a cathedral of stalactites, and a slow, close-in tour through a living mangrove forest.
Difficulty
moderate
Duration
8–10 hours
Fitness Level
Moderate cardio and mobility; able to board small boats, climb short ladders for the zipline platform, and walk uneven boardwalks.
Wildlife
History
The underground river is part of a larger karst landscape that has supported local communities for centuries and was inscribed as a UNESCO World Heritage Site in 1999.
Conservation
Park authorities enforce strict visitor limits and no-touch rules inside the cave; stick to boardwalks to protect mangrove root systems and nursery habitats.
Reserve your spot on the 3-in-1 Adventure: Underground River, Zipline ride, and Mangrove Forest Tour today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Start early
Book the first departure from Puerto Princesa to avoid long waits at the park entrance and reduce crowds in the cave.
Bring closed-toe shoes
You will board small boats and walk on muddy boardwalks; sturdy, quick-drying shoes protect your feet.
Check medical restrictions
The zipline and cave ride are not recommended for pregnant travelers or those with back or serious heart conditions.
Carry small change
Vendors at Sabang and guide tips are often cash-only; bring Philippine pesos in small bills.
Closed-toe trail shoes
Protects feet on wet docks, mangrove boardwalks, and during short climbs to zipline platforms.
Refillable water bottle
Keeps you hydrated through humid paddles, the cave boat ride, and the zipline wait times.
summer
Light rain jacket or windbreaker
Useful during tropical showers or windy conditions on the zipline platform.
spring
Reef-safe sunscreen and insect repellent
Protects from sun exposure at the zipline and mosquito-prone mangrove edges.
summer