@BLD: I think the entrance fee was P200. As we were kuripot backpackers, we said "no thanks". I could buy 3 cornsilogs with P200. I looked at your thread again and saw the cave. Maybe I'll go there if I visit Bora again and have more $. I think the price is too steep as an entrance fee for local travelers. If the owners want to increase tourists, then they should lower the entrance fee. But then, it's a private island and the owners probably don't really need or want the money from entrance fees. <shrug>
Re: square sausage, I had to google that, as I didn't know such existed. Looks interesting. When uncooked, it looks like frozen Libby's corned beef.