JEmmanuelLasPinas
Wear comfortable footwear and be prepared for some physical exertion. The cave has some unique and intresting rock formations. Bring lots of water.
NiemaRach
I am not sure if there are any fees that should paid before hand, when we get to the location, there are a couple of tourist on the area and we were informed that they are going inside the cave. The start of the trail is about roughly 70-80 degrees inclined so they'll pull you up to start the trail. The descend on the cave itself is trickier, but of course, what's inside the cave is worth more than what you've gone through to get there.
truffles101010
Went there to visit callao cave, the 7 chambers. But it was raining so we the floor was slippery, we only got to 5th chamber. On the way up was a little bit tiring but it was worth the trip. The entrance of the cave was amazing. The tour guides were kids/teens allowed and trained by the tourism there to act as guide.