The Lakes With Simon Reeve

9pm, BBC Two

The adventurer looks at the impact of humans on the Lake District, taking a wild swim at Buttermere. Here, the crystal-clear waters are in stark contrast to other lakes such as Derwent Water, which is clogged with invasive New Zealand pygmyweed. Climbing to the summit of Scafell Pike, Simon learns how the ever-increasing number of visitors is damaging England’s highest peak and stretching the resources of rescue teams.