It’s not just humans who need to cool down in this hot spell.

Dogs enjoyed a refreshing dip at a fun event at the West Reservoir Centre in Hackney, London.

Bob, a Dachshund, Sammy, a Jack Russell, Joey, a Spaniel and Sterling, a Hungarian Vizsla get set to jump in (Anthony Upton/PA)

And they’re off, led by Finn, the Golden Retriever (Anthony Upton/PA)

Canine aqua specialist Julien Mazurek take Bob for a dip (Anthony Upton/PA)

The event, including swimming races, was organised by dog walkers, Rover.com (Anthony Upton/PA)

Sammy, a Jack Russell, shakes off (Anthony Upton/PA)