Declan Sawyer got into difficulty in water on a nature reserve during the UK's first heatwave of the year, prompting a coroner to warn over the risks involved in open water swimming

Declan Sawyer got into difficulty in water on a nature reserve during the UK's first heatwave of the year, prompting a coroner to warn over the risks involved in open water…

Declan Sawyer, 15, got into difficulty at Swanholme Lakes nature reserve in Hartsholme Park, Lincoln, on the afternoon of May 24.