Volunteers marshalled by retailer Marks & Spencer have cleared 30 tonnes of waste in the Big Beach Clean-up.
This was double the 15 tonnes target set for the 8,000 staff and customers who took part, and three times as much as was collected in the exercise last year.
Waste was cleared from 113 beaches and 50 canal locations.
A spokesman said the bulk of the waste collected was plastic, but it was too early to disaggregate the material intro tonnages.
Among the more unusual finds were 15 duvets, a bath and a toothbrush branded ‘HM Prisons’.
Marks & Spencer said that according to the Marine Conservation Society there are two pieces of litter for every metre of coastline, most of it plastic, which can be harmful to marine life.
The clean-up is part of Marks & Spencer’s Forever Fish campaign, which is funded by the 5p carrier bag charge in its food halls.
It said that since its introduction in 2008, this charge had reduced carrier bag use by 78% and raised more than £4m for charity.