Cheddar Reservoir will be shut to visitors for the first time this week due to the predicted hot weather temperatures.

Bristol Water, which runs the reservoir, has said it will close the site during periods of hot weather due to a spike in anti-social behaviour – the first of which will be this Friday (July 31).

The lake will open the following day (Saturday August 1) when the temperature is expected to cool down.

The decision comes after a drastic increase in people swimming, drinking, littering and gathering at the reservoir.

Steve Smith, head of recreations at Bristol Water, said: "I'm a huge advocate of walking in nature for our wellbeing, so this is not a decision taken lightly.

"We're sorry that the actions of a small minority are ruining it for the majority, but we cannot risk anyone losing their life.

"It might look inviting, especially at a time when holidays have been cancelled, but it's never safe to swim in reservoirs."

When the temperature increases to more than 23C, the path and car parks will be shut to visitors. On Friday, the temperature in Cheddar is predicted to reach 29C.

During periods of closure, car parks and gates will remain locked and security will be on site.

Closures are published at least 24 hours in advance, and on social media. Signage will also be in place locally.