Barton Broad thumb|left|200px|Barton Broad As the river nears Barton Broad it passes a triangular island called The Heater. The channels either side lead to Barton Turf staithe and its boatyard. The river now enters Barton Broad, the second largest of the Broads, its size only exceeded by Hickling Broad. It has a surface area of and since 1995, much work has been carried out to increase the amount of open water and to dredge polluted mud from the bottom of the broad. Despite opposition from Natural England, the Broads Authority used curtains of bubbles to stop fish from entering the broad. This allowed water fleas to proliferate, which cleared the cloudy water. The broad is a nature reserve managed by the Norfolk Wildlife Trust and a Site of Special Scientific Interest (SSSI).
Barton Broad thumb|left|200px|Barton Broad As the river nears Barton Broad it passes a triangular island called The Heater. The channels either side lead to Barton Turf staithe and its boatyard. The river now enters Barton Broad, the second largest of the Broads, its size only exceeded by Hickling Broad. It has a surface area of and since 1995, much work has been carried out to increase the amount of open water and to dredge polluted mud from the bottom of the broad. Despite opposition from Natural England, the Broads Authority used curtains of bubbles to stop fish from entering the broad This allowed water fleas to proliferate, which cleared the cloudy water. The broad is a nature reserve managed by the Norfolk Wildlife Trust and a Site of Special Scientific Interest (SSSI).