Anemone- where? in Sunderland, what is it called?

There was a very low tide today that exposed many seaweeds and creatures that are not normally exposed. There were loads of anemonies. The ones out of the water just look like round blobs of jelly. This one has some blue bits on it that were almost flourescent. Sorry, I don't know the name of it so if anyone can help then that would be great.