Meggie Avon calls herself Britain's first 'river bride' after symbolically marrying the River Avon in southern England. Her unusual commitment is part of a campaign to protect one of the UK's most polluted rivers. As wild swimming grows in popularity, Meggie and volunteer river guardians are pushing for better water-quality testing, stronger environmental protections and greater public awareness. Campaigners in Bath are also backing a new River Charter and discussing legal rights for rivers, hoping to give nature a stronger voice in efforts to tackle pollution.