We have the cave all to ourselves and the tour guide was very accommodating and knowledgeable. It wasn't as good as the underground river in Palawan but it was a unique experience nonetheless. My daughter was looking forward for the bats but I guess they were all tired and hibernating. Some of the rock formation were captivating as well as the crystals. It was also naturally cool/ventilated inside (I was surprised), thought it would be very hot and cramp. It was a good experience, only downside was it was raining when we came out of the cave and can not see the Mayon volcano on the horizon. Would have been really perfect if it wasn't.