Get to see the amazing Puerto Princesa Underground River and experience the beauty of nature in Palawan. This 8-hour guided trip will take you to the longest navigable underground river in the world. As the place can only accommodate a small number of visitors daily, early booking is highly encouraged.An option to add an exhilarating zip line ride over the sea is available. If you’re arriving in Puerto Princesa via cruise ship, please book the private tour option as your timings require special