I think this may be eggs of something and seeing as it has the blue it is probably poisonous, like the blue bottle or the sea swallow. Mind you, it could also be a sea creature!
Yesterday I found these as blobs on the beach but they were identified. Today I found them floating being stalked by sea swallows http://naturewatch.org.nz/observations/2670813
Yesterday I found these as blobs on the beach but they were identified. Today I found them floating being stalked by sea swallows http://naturewatch.org.nz/observations/2670813
Yesterday I found these as blobs on the beach but they were identified. Today I found them floating being stalked by sea swallows http://naturewatch.org.nz/observations/2670813