Belinda is living proof that otters are coming back to British waterways.

Belinda the otter with her owner Daphne Nevill

At Cholsey Marsh nature reserve, she met some of the people who have made the revival possible.

Thames Water and the Environment Agency's work with wildlife trusts is behind a 300 per cent increase in otter numbers in the Thames Valley.

Belinda and her owner Daphne Nevill were at Cholsey to launch the national otter survey report. Chief executive of the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust, Martin Spray, said: "The report indicates a steady recovery, but we are still some distance away from historical numbers."