From otters to freshwater shrimps, all animals are dependant on an abundant and reliable supply of clean water. Rivers sustain the natural environment, wildlife and people in equal measure.

Cool, crystal-clear waters flow over gravelly beds, streaming through white-flowered water-crowfoot and watercress in serene lowland landscapes.

Rocky habitats are some of the most natural and untouched places in the UK. Often high up in the hills and hard to reach, they are havens for some of our rarest wildlife.