Sea Blob (Jellyfish?)

Sea Blob (Jellyfish?)

Observation - Sea Blob (Jellyfish?) - UK and Ireland. Description: What is this?!?! Spotted along with many more poking out of the sand, under shallow water. Jelly co

What is this?!?!
Spotted along with many more poking out of the sand, under shallow water. Jelly consistency, pink/red faint markings within.
White specks shown are on the inside of creature not on skin/outer layer as what shows on picture.