Barrel Jellyfish, Summer Isles, Scottish Highlands, UK (Rhizostoma pulmo)

After kayaking out to Priest Island I was just drifting around in the shallow lagoons amongst the Summer Isles when I spotted this Barrel Jellyfish. This one was a reasonable size with the bell being about two feet across though I have seen much larger ones. I just held my waterproof camera below the surface, pointed it in the general direction, and hoped the autofocus had enough light to work.