Rupert Kirkwood from Holsworthy in the UK does a lot of sea kayaking. He has been paddling along the South West coast for a number of years, but he may have just had the kayaking highlight of his life.
On a recent paddle off the Cornish coast, he was surrounded by five sharks, each some 20 ft in length circling his kayak.
He recognized them as basking sharks, harmless to humans, and he held his waterproof camera underwater and started snapping. The results are astonishing photographs like this one.
Check out his blog here for his story and more pictures. They are amazing.