Please stay safe in the heat. Swimming pools, rivers, lakes, or the sea can be a fun way to cool down when the weather is hot, however summer months are also associated with an increase in water related incidents. There is more advice here, including information about how to cool down and the dangers of swimming in open water

https://www.gov.uk/government/publications/beat-the-heat-hot-weather-advice/beat-the-heat-staying-safe-in-hot-weather#stay-safe-when-swimming