This is an interesting cave, since you must crawl through a small opening and tumble down to enter the first cave. Our tour guide had thoughtfully laid a life jacket to "cushion" our crawl.
This made for some fun.
The cave itself is unfortunately stuffy and (undesirably though expectedly ) smelled of guano - bat droppings! We hurried and ambled up the rocks to the next cave, which had some fresh air from a shaft in the rock.This is really a pair of caves more for wacky photos (people peering through a hole in the rock, ets )
Though it was interesting first time, I would not come here again.
You can read my frank and honest account of our El Nido trip (with dozens of photos) here - http://goo.gl/6HyXU
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.