Emergency services and water safety experts have now issued a plea for people to stop recklessly risking their lives and to stay out of the lake in Wath.
Site supervisor Trevor Coldron, 53, said: “I have been out in the rescue boat about ten times in the last few weeks, and was out every day for three months’ solid last year to try and get people out of the water.
“They do not realise they are putting their lives at risk. Even if you are a good swimmer, once the cold water hits you it can cause cramp and you can quickly get into difficulty. Cold water kills.”