It's hard to tell without context. I assume that you mean 'refuge' rather than 'refugee'?
A refuge is a place to get away from something. Perhaps they are getting away from a crowd? Or hiding from someone? You would need to work that out from context. A buffer probably means something that provides a gap between things. On a boat, they sometimes hang tyres over the side of the boat, so that the boat is not damaged when the boat bumps into something. Those are buffers. Whatever it is, it keeps them apart. It could perhaps be something one of them was carrying. Again - you would need context to work it out.