蜜芽传媒

The 225 year old Monmouthshire & Brecon Canal weaves its way through the Bannau Brycheiniog National Park - formerly known as the Brecon Beacons National Park - and the Blaenavon industrial landscape World Heritage Site, attracting an estimated 3 million visitors a year for boating, walking and cycling.

Steffan Messenger speaks to people working on the canal worried that it could start to run dry in days without intervention.