From dog walkers to sunbathers, everyone in this vibrant scene looks like they're enjoy a fun-filled day at the park.
But take a closer look and you will see there is one person who is feeling under the weather.
Hidden within the action-packed picture is a woman who is suffering from stomach cramps, although she might take a while to spot.
The puzzle was released by Lizi's Gluten Free Granola to raise awareness of coeliac disease, which affects one in 100 people in the UK.