Veteran British natural historian David Attenborough, who will turn 100 on Friday, has had his likeness drawn in the sand at Morecambe Bay in England.
Artists marked out the outline of the naturalist and broadcaster's image, complete with a quote reading: "We often talk of saving the planet, but the truth is that we must do these things to save ourselves."
They then raked the sand, applying different stroke strengths to get the tonal effect of the roughly 80 metres tall by 56 metres wide drawing.
Artist Jamie Wardley described Attenborough as "a global icon."
"He's really been a pioneer of getting the subject of climate change, which we see as one of the biggest challenges for humanity, in front and in the centre of the public's consciousness," he said. "That's really an amazing legacy to have."