A scheme to make Gloucestershire's waterways more eco-friendly is due to be launched by BBC Countryfiles' presenter John Craven.
The Green Fund aims to reduce the carbon footprint of boats by investing in environmental projects.
It will fund water treatment plants, and renewable energy sources such as solar panels.
The fund will also pay for the creation of bat boxes, otter holts and soft banking to encourage water voles.
Larger habitat monitoring projects will also improve canal habitats and provide an educational resource for local people.