“It’s wellington boots, black bags, bin liners, litter pickers in your hand. right into getting into a wetsuit, getting on to a boat and swimming into a bay.”

While the area in which they work is “the beautiful Causeway coast”, the landscape is “blighted by rubbish and plastic bags” and the problem is getting “worse and worse and worse”.

However, the easiest part of the job, he said, is getting people to help out.

“They will turn up on a cold, miserable January morning to the river bank when everybody else is in their bed.”

Over the years they’ve had around 550 different volunteers who have helped out ,ranging in age from nine to 89.

“We come from a very broad church.”