we purchased 8 tickets including kids age 5 and 6, one adult was paid but did not join the travel therefore we should have one vacant seat making the trip more comfortable.. the kids should have an allotted seat in the van since they are paid but the driver of the van and the tour agency overbooked and had the kids sit on their parents lap for the entire trip!!! they even went to the city to pick up other guests that were not booked via traveloka. it was an awful experience. never book via app. no one in traveloka can explain why the travel and tours and the driver behaved that way. and why the kids weren't provided seats. Never again. better if you book directly in Puerto princesa at least you know who to contact in case things like this happen . we were also not informed that there will be a crewship which will be a priority for the underground river tour. we were told a day before that the pick up time will be 7am but we were picked up at 9am! 2 hours delayed! we requested refund because we are uncomfortable in the van and we were on the afternoon trip but to no avail. the contact person in this traveloka booking, their partner travel and tour didn't do anything to resolve the issue that we experienced. Never ever book here, people lacks accountability if anything bad happens during the trip.