Jersey Coastguard want to hear from the person seen swimming at Greve d'Azette after their belongings were found a day later on the beach.
A pair of camouflage crocs, green t-shirt and orange towel were seen at around 10:30am today, prompting an appeal for information.
A person then came forward who saw and took a photo of the same belongings near to where they were found today at 11am on Friday.
They also saw a person swimming quite a way from shore, but who didn't seem to be in any trouble.
Other calls have stated the same belongings were seen around 7am on Friday.
Jersey Coastguard, Jersey Police, Havre des Pas lifeguards and the Fire Service drone team have been out searching the shoreline today.
The coastguard want to hear from the person seen swimming at 11am yesterday along with anyone with information on who these items belong to.
They can be contacted on 447705.