Lake District visitor numbers have increased by around 10% in the last year, according to the National Trust.
The more people who visit the Lakes, the quicker the paths erode, and this has an effect on the wildlife too.
When paths become heavily eroded they destroy fragile wildlife habitats and threaten some species.
Fish species such as the rare vendance, as well as salmon and trout, are under threat because their spawning grounds are damaged by soil and debris washed off the paths and into lakes and streams.
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A number of roadwork projects in Cumbria will be temporarily lifted over the Bank Holiday Weekend, to make travel easier.
There will be major delays to almost all railway services in the region over the three days. Replacement buses will be operating.
Police and local authorities in Cumbria are issuing road traffic and safety advice ahead of the Appleby Horse Fair, which begins next week.