Enjoy Puerto Princesa's best sights and activities on this one day tour that takes you to the Underground River, Sabang X Zipline and a Mangrove Paddle Tour! Start off your tour with a stop at the Underground River, a UNESCO World Heritage Site known as the world's longest navigable subterranean river. Learn about the Underground River as you look around and witness the untouched beauty of nature as you gaze at the stalagmite and slatactite formations and even a 20-million year old fossil of a sea cow! You'll then go on the Mangrove Paddle Tour and cruise through hundreds of massive mangrove trees and discover how valuable they are to Palawan's ecosystem. Expect your guide to point out the various animals like the monitor lizard/bayawak hiding among the trees and you can even try out the tamilok, an exotic delicacy that features a woodworm soaked in vinegar! Get a chance to go on the Puerto Princesa Sabang X Zipline, a zipline 150 feet above sea level that shows you majestic views of Sabang Beach and the surrounding areas, before enjoying a delicious lunch at Sheridan Beach Resort.