Dolly the giant Galapagos tortoise enjoys a cooling dip in her pond at ZSL London Zoo.
Zookeeper Charli Ellis snapped the image as temperatures hit 26 degrees in the capital recently.
ZSL London Zoo is calling on the public for support to help care for its 18,000 animals – from majestic lions to tiny frogs – while the zoo is closed to visitors.
To find out more and help the charity weather the storm head to www.zsl.org/donate