Swimmers have been urged to exercise caution after a young man got into difficulties after entering the water at Oxford Island.
In a social media post Kinnego Marina said: “This evening a young man got into difficulties whilst swimming at Oxford Island.
"On this occasion it was a good outcome. However, if it was not for the swift actions of a jet skier that was in the area the outcome would have been totally different."
Coastguard, police and ambulance were all in attendance, the post added.
They also issued the following advice and urged everyone to think before they enter the water.
“Thirty people have drowned over the last week, in the UK," they said.
“Please choose carefully where to cool off. It’s best to make use of beaches or swimming pools with lifeguards.
“Rivers and lakes should be avoided. These can hide hidden dangers and the water is much cooler just below the surface. This means after you jump in, your bodies natural reaction is to take a deep gasp.
“Never swim under the influence of alcohol or drugs.
“Parents, please talk with your children about water safety.
“Emergency on Lough Neagh or it’s rivers dial 999 for Coastguard. Inland emergency, dial 999 for Fire & Rescue."
The incident comes as 13-year-old Jay Moffett tragically drowned in Scarva on Monday.