StoneRoad2013's photos with the keyword: Rhizostoma pulmo

Not my image. Spectacular back-lit view of a barrel jellyfish. en.wikipedia.org/wiki/Rhizostoma_pulmo I've seen a couple of these over the past few years near to and actually in Whitehaven Marina

This Barrel Jellyfish ( Rhizostoma pulmo ) was one of several gently swimming around the pontoons in Whitehaven Marina, perhaps as much as 18" across ? scale is very difficult !