Can I wear flip flops?

You can, but your feet will get dripped on with "cave kisses" and your experience will be that much more slippery.

You can but might not be the greatest idea. If the cheapo flip flops probably shouldn't. If good bottoms on them you'll be fine

I did and was fine. I was just careful in slippery spots. My husband wore tennis shoes and slipped more than I did, but I wear reef brand so they have some grip.

That wouldn't be a safe idea

I would not

I wouldn't recommend them

Yes, maybe a little slippery in some places and cold

Yes, but I wouldn't.

Yes.

I don't know if its allowed, but i certainly wouldn't recommend it. The cave is wet, could be slippery and good footwear would make things easier.