There is a strange cave on Phi Phi Lay. I can't remember the whole story but I think the ancients of the area used to harvest bat guano from the cave. Bit of a tourist trap by the looks.
We settled into our room & set out to explore the hotel & find some lunch. I can't recall us doing too much interesting other than having a swim in the pool, relaxing & investigating the scuba diving options for the next day.