Lots of these washed up by the tide. Pulsating centre
A jellyfish (Scyphozoa) lit by sunbeams in blue water
A Yellow-finned Leatherjacket (Meuschenia trachylepis) eating a dead jellyfish (Scyphozoa)
Mauve Stingers (Pelagia noctiluca) and salps (Salpidae) in blue water
Saw this on the beach, no idea what is that.