Volunteers are needed to patrol canal towpaths in west London and ensure they are used safely and responsibly.
The Canal & River Trust wants to recruit 30 new towpath rangers to monitor the banks of the Grand Union Canal and other waterways it manages across the capital.
The charity claims the role would suit keen cyclists or walkers, who would encourage other towpath users, including anglers, joggers and boaters to use the paths responsibly.
Rangers would also act as ambassadors for the waterside paths, leading guided walks, carrying out visitor counts and promoting them to surrounding communities.
Rob Lansdown, who has volunteered as a ranger for four years along the Regent’s and Grand Union Canals, urged others to give it a go.
"I had serious back problems and needed to lose weight, so I went on the 'Waterways Diet'," he said. "I lost 10 stone in a year by walking along the towpaths of London.
"Then I found out about volunteering as a towpath ranger and thought it sounded a great idea. Some of us cycle and some walk, sometimes together, sometimes on our own, and we look out for anything that's amiss so it can be fixed.
"It's a good role, there's always something going on or someone who needs some help – and it's great to be of service to them."
No specialist knowledge is needed for the role, but an interest in cycling or walking, and a love of talking to people helps. The trust hopes to recruit the volunteers by the end of February.
For more information, visit the website.