I dreamed recently that I jumped into a giant swimming pool, fully dressed, so that I could swim around and play with the toys that were in there. Many of the toys weren't of the swimming pool variety and some were broken. There was a large thick corkboard, probably a foot thick, shaped like a giant surfboard and it had big metal handles sticking up, such as those on the side of pools to help you climb out. It was too big to play with, so I broke off a chunk to use as a kickboard. The piece I broke off sank to the bottom. Floating in the water, not on the surface, but halfway down, were several other toys, among them a toy aeroplane, while on the bottom were items that had sunk.
I was swimming quite freely above and under the water, when I noticed a large....ship? or something that was scooping the water through a grill and hose suction type of thing to clear it. I didn't want the broken toys to clog the apparatus, so I dived down deep to pull things out of the way.
Then I realised that I was breathing comfortably the whole time whether I was under the water or not.
There weren't even any air bubbles, I was just breathing.
Another dream, yet I only remember one part of it, where I was speaking to a work friend who died last year. She was alive and well and happy to be back. Even though we both acknowledged that she was still dead.