Found this on the beach, when the tide was out

Found this on the beach, when the tide was out

Observation - Found this on the beach, when the tide was out - UK and Ireland. Description: I thought it was a load of eggs like some kind of shark, but afew people have said that it is an amemone of some kind, Can anyone please identify this for me?

I thought it was a load of eggs like some kind of shark, but afew people have said that it is an amemone of some kind,

Can anyone please identify this for me?