Published Monday, 02 September 2013
Mr Karbus' dolphin's eye view shot. (© PA)
It was taken by George Karbus, from County Clare, who swam alongside the bottlenose dolphin to capture the image, titled 'In the Living Room'.
The diver pocketed a £5,000 prize for his efforts, winning the coast and marine category as well as the overall title.
Mr Karbus said: "Each time the dolphin got into the wave, I dived underneath, held my breath and waited for the moment when he would swish through a silver barrel close enough to my lens.
"Water visibility is always very limited in Ireland and I was very lucky to get a shot like this."
The judges selected winners for 12 categories which aim to highlight the wealth of nature in the UK, including a wildlife video and a documentary series of pictures which was won with a photo essay on vaccinating badgers for TB as an alternative to culling.
A book will be published of the best entries and an exhibition of 100 images and video launches at the Mall Galleries in London.
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