A red flag remains in place at Garrettstown Beach after a sighting of a Portuguese Man O' War jellyfish.
On Saturday, there was also a sighting of a similar jellyfish washed up nearby at Garrylucas Beach.
Beachguards will be walking their areas this morning to check if any more of the jellyfish have washed up.
The tentacles of the jellyfish can be up to 45 metres long and are venomous.