Visiting the Puerto Princesa Underground River is a truly unforgettable and once-in-a-lifetime experience.
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The Puerto Princesa Underground River is perhaps the crown jewel in Puerto Princesa’s rich collection of natural attractions.
Formally known as the Puerto Princesa Subterranean River National Park, the underground river is located on the western side of the Saint Paul Mountain Range. It is a must-see destination, one that you have to include in your bucket list because the experience of going inside the underground river is both surreal and breathtaking.
Formally known as the Puerto Princesa Subterranean River National Park, the underground river is located on the western side of the Saint Paul Mountain Range. It is a must-see destination, one that you have to include in your bucket list because the experience of going inside the underground river is both surreal and breathtaking.
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The Puerto Princesa Underground River |
6 reasons to visit the Puerto Princesa Underground River
The Puerto Princesa Underground River tour is great for adventure-seekers but it also caters to those who are looking for low-impact physical activities since there is no climbing, running, or swimming involved. You just need to be prepared for a moderately-long trek to get to the mouth of the underground river.
If you are still not convinced, here are 6 reasons why you should visit and see for yourself the Puerto Princesa Underground River:
Sure, communing with nature may not necessarily be your primary reason for going to the Puerto Princesa Underground River. However, when you get there, you will realize that it’s a good side activity that you can take advantage of and definitely at no extra cost to you (except if you are availing of the mangrove tour).
Since the Puerto Princesa Underground River is located in the protected area of the St. Paul Mountain, a trip here, not just in the river itself but in the surrounding area, is a wonderful opportunity to marvel at nature in its pure, unadulterated glory. See stunning limestone cliffs that abound in the vicinity as well as trees, birds, monkeys, and stretches of white-sand beaches. Speaking of monkeys, always be alert when they are around as they are naughty and notorious for snatching things like bags and food from tourists.
In 2012, the Puerto Princesa Underground River was officially named as one of the New 7 Wonders of Nature. The New 7 Wonders of Nature is a movement that aims to highlight awareness on natural wonders and preserve it so that generations to come will still get to see it for themselves.
Among 28 finalists from all over the globe, the Puerto Princesa Underground River was chosen as among the seven wonders.
In addition to being one of the New Seven Wonders of Nature, the Puerto Princesa Underground River is also a UNESCO World Heritage Site.
According to the United Nations Educational, Scientific and Cultural Organization (UNESCO), it seeks to encourage the identification, protection, and preservation of cultural and natural heritage around the world that are considered to be of outstanding value to humanity. Sites that are part of the World Heritage group belong to all people of the globe, notwithstanding the territory in which they are located.
It is not all the time that one may get to travel and marvel at or explore a destination that has been confirmed the honor of being in the New Seven Wonders of Nature as well as a UNESCO World Heritage Site. Thankfully, Puerto Princesa City is just a plane ride away from Metro Manila so it is easy to see the Puerto Princesa Underground River if you would like to do so.
Waiting time before tourists may enter the Puerto Princesa Underground River can be lengthy. At times, you may even have to kill four hours before your actual tour. As such, there are activities that you can avail of in order to pass the time. One of which is the Mangrove Forest Tour. It’s a tour via paddle boat into a river that is overgrown with mangroves on each side.
During the Mangrove Forest Tour, we learned from the locals the life cycle of mangroves as well as the difference between male and female trees. The guides also explained that the dead mangrove tree trunks serve as home to the famous delicacy "tamilok."
Tamilok is better known as woodworm and is eaten raw as a local exotic dish. It is actually a shell-less mollusk and is related to oysters, hence the similarity in flavor. Tamilok is served fresh and can be eaten straight after it has been dipped in spicy vinegar (alternatively, it can be marinated ahead in spicy vinegar). Our guides ended the mangrove forest tour with a local song.
Just like in any famous tourist destination, most of the activities and services are conducted by locals. The boat operators at the Puerto Princesa Underground River are all local residents. The Mangrove Forest Tour, we learned from our guide, is conducted by a cooperative whose members are all locals. One guide also shared that he was once unemployed but the tour and the influx of tourists benefited them greatly. In fact, he was able to send his children to school just by being a tour guide.
The actual Puerto Princesa Underground River tour is filled with facts and trivia about life inside the dark cave. We were provided a recorded narrative of the history of how the underground river was discovered as well as how the different formations inside the cave have been shaped and molded over a long period of time, sometimes even spanning millennia. We were warned never to touch any of these formations because the acidity of our skin would destroy these delicate natural figures.
From time to time, we will be asked by our tour guide to pause the recorded narrative and then proceed to tell us stories about the large grouper fishes and other marine animals that lurk in the pitch darkness.
From outside the Puerto Princesa Underground River, it was really hard to tell what to expect inside. As such, when our boatman slowly paddled our way inside the pitch-black cave, we were quite taken aback and somehow a bit panicked. It was like venturing into a world that is completely not ours, a world that has never seen single sunlight.
Of course, that odd feeling was soon replaced by awe as we soon saw the breathtaking formations around us. Throughout our journey, our guide would point out different shapes that are similar to vegetables, religious figures, sea creatures, and even human forms.
The highlight of the tour though was the “cathedral,” a portion of the cave that contained the highest ceiling. On our way out, our guide pointed out more oddly-shaped rock formations. The tour was indeed an experience of a lifetime and we did not regret seeing the Puerto Princesa Underground River
But just to give you an idea, here is how you can spend the day at the Puerto Princesa Underground River:
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View of Honda Bay |
If you are still not convinced, here are 6 reasons why you should visit and see for yourself the Puerto Princesa Underground River:
1. A visit here is a chance to commune with nature
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Boat ride going to the Puerto Princesa Underground River |
Sure, communing with nature may not necessarily be your primary reason for going to the Puerto Princesa Underground River. However, when you get there, you will realize that it’s a good side activity that you can take advantage of and definitely at no extra cost to you (except if you are availing of the mangrove tour).
![]() |
Enjoying the beautiful scenery around the Puerto Princesa Underground River |
Since the Puerto Princesa Underground River is located in the protected area of the St. Paul Mountain, a trip here, not just in the river itself but in the surrounding area, is a wonderful opportunity to marvel at nature in its pure, unadulterated glory. See stunning limestone cliffs that abound in the vicinity as well as trees, birds, monkeys, and stretches of white-sand beaches. Speaking of monkeys, always be alert when they are around as they are naughty and notorious for snatching things like bags and food from tourists.
2. It is one of the New Seven Wonders of Nature and is a UNESCO World Heritage Site
In 2012, the Puerto Princesa Underground River was officially named as one of the New 7 Wonders of Nature. The New 7 Wonders of Nature is a movement that aims to highlight awareness on natural wonders and preserve it so that generations to come will still get to see it for themselves.
![]() |
The Puerto Princesa Underground River marker |
Among 28 finalists from all over the globe, the Puerto Princesa Underground River was chosen as among the seven wonders.
In addition to being one of the New Seven Wonders of Nature, the Puerto Princesa Underground River is also a UNESCO World Heritage Site.
According to the United Nations Educational, Scientific and Cultural Organization (UNESCO), it seeks to encourage the identification, protection, and preservation of cultural and natural heritage around the world that are considered to be of outstanding value to humanity. Sites that are part of the World Heritage group belong to all people of the globe, notwithstanding the territory in which they are located.
![]() |
Breathtaking karst limestone formation |
It is not all the time that one may get to travel and marvel at or explore a destination that has been confirmed the honor of being in the New Seven Wonders of Nature as well as a UNESCO World Heritage Site. Thankfully, Puerto Princesa City is just a plane ride away from Metro Manila so it is easy to see the Puerto Princesa Underground River if you would like to do so.
3. It's a great opportunity to learn about mangroves
Waiting time before tourists may enter the Puerto Princesa Underground River can be lengthy. At times, you may even have to kill four hours before your actual tour. As such, there are activities that you can avail of in order to pass the time. One of which is the Mangrove Forest Tour. It’s a tour via paddle boat into a river that is overgrown with mangroves on each side.
![]() |
Mangroves |
During the Mangrove Forest Tour, we learned from the locals the life cycle of mangroves as well as the difference between male and female trees. The guides also explained that the dead mangrove tree trunks serve as home to the famous delicacy "tamilok."
![]() |
Mangrove paddleboat tour |
Tamilok is better known as woodworm and is eaten raw as a local exotic dish. It is actually a shell-less mollusk and is related to oysters, hence the similarity in flavor. Tamilok is served fresh and can be eaten straight after it has been dipped in spicy vinegar (alternatively, it can be marinated ahead in spicy vinegar). Our guides ended the mangrove forest tour with a local song.
4. You are helping out the locals
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Photo souvenir before the mangrove paddleboat tour |
Just like in any famous tourist destination, most of the activities and services are conducted by locals. The boat operators at the Puerto Princesa Underground River are all local residents. The Mangrove Forest Tour, we learned from our guide, is conducted by a cooperative whose members are all locals. One guide also shared that he was once unemployed but the tour and the influx of tourists benefited them greatly. In fact, he was able to send his children to school just by being a tour guide.
5. You can learn a lot of things about caves
The actual Puerto Princesa Underground River tour is filled with facts and trivia about life inside the dark cave. We were provided a recorded narrative of the history of how the underground river was discovered as well as how the different formations inside the cave have been shaped and molded over a long period of time, sometimes even spanning millennia. We were warned never to touch any of these formations because the acidity of our skin would destroy these delicate natural figures.
![]() |
The cave wall of the Puerto Princesa Underground River |
From time to time, we will be asked by our tour guide to pause the recorded narrative and then proceed to tell us stories about the large grouper fishes and other marine animals that lurk in the pitch darkness.
6. It's a once-in-a-lifetime experience that is similar to traveling to a different world
From outside the Puerto Princesa Underground River, it was really hard to tell what to expect inside. As such, when our boatman slowly paddled our way inside the pitch-black cave, we were quite taken aback and somehow a bit panicked. It was like venturing into a world that is completely not ours, a world that has never seen single sunlight.
![]() |
Stalactites |
Of course, that odd feeling was soon replaced by awe as we soon saw the breathtaking formations around us. Throughout our journey, our guide would point out different shapes that are similar to vegetables, religious figures, sea creatures, and even human forms.
![]() |
The Cathedral |
The highlight of the tour though was the “cathedral,” a portion of the cave that contained the highest ceiling. On our way out, our guide pointed out more oddly-shaped rock formations. The tour was indeed an experience of a lifetime and we did not regret seeing the Puerto Princesa Underground River
Sample itinerary
If you would like to go to the Puerto Princesa Underground River, it is advisable that you allocate one whole day for it as you do not have control over the number of tourists waiting in line to go inside the cave. As such, you do not really need a full itinerary for it.
But just to give you an idea, here is how you can spend the day at the Puerto Princesa Underground River:
- Van to Sabang Beach (8:00 AM to 10:00 AM)
- Boat ride to Princesa Underground River (10:15 AM to 10:40 AM)
- Mangrove Forest Tour (11:00 AM to 12:00 NN)
- Lunch (12:00 NN to 1:00 PM)
- Zipline – depending on availability (1:00 PM to 2:00 PM)
- Princesa Underground River Tour (2:30 PM to 3:30 PM) - this is an ideal scenario wherein the line of tourists is not too long
- Boat ride to the port/Sabang Beach (3:45 PM to 5:05 PM)
- Van to hotel (5:15 PM to 7:15 PM)
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