A mountain of marine litter, including objects dangerous to wildlife, was picked up at the annual Beachwatch beach clean in Worbarrow Bay.

Dorset Wildlife Trust reported a worryingly high count of balloons at the Purbeck beauty spot, which are among the most harmful rubbish to wildlife.

Rubbish weighing in at 188kg (or 2.7 average humans) was painstakingly hand-picked from the beach by 70 volunteers of all ages, including Surf ’n’ Turf volunteers who analysed the finds.

These included fishhooks, shotgun cartridges, countless pieces of plastic and even a fridge door, all of which can be harmful to marine wildlife and birds.

Lulworth range wardens were on hand, ready with specialist knowledge in case any bombs or mines were found, but on this occasion the coast was clear.

Other finds will be used to increase knowledge about Dorset’s marine wildlife, including the 77 empty shark egg cases, known as mermaid’s purses.

Emma Rance, marine conservation officer for the DWT said: “We are extremely grateful to all who helped to safeguard the marine environment at this important annual event.

“We can all make a difference at home too, by placing any plastic or non-biodegradable material in the bin and not in the loo and opposing all balloon releases.

“Not only are they unnecessary and harmful to wildlife, but they are a form of littering,” she added.