A scientist has spent four painstaking decades studying the loch best known for the creature affectionately known as "Nessie". Why does this mythical monster hold such fascination for so many people, ask Chloe Hadjimatheou and Vanessa Barford.Adrian Shine has patrolled lakes by day and night. He's taken countless photos, and he's used all the latest technological advances in sonar to uncover the mystery behind Loch Ness monster.
Twenty-five years ago this week, he led what was at the time considered the most extensive search of Loch Ness - a £1m exploration called Operation Deepscan.
The week-long project consisted of a flotilla of 24 boats, equipped with high-tech sonars, which trawled the 22.5-mile (36km) long, 738ft (227m) deep lake in the Scottish Highlands for two days.
So when did the Loch Ness monster gain such mythical status, and what is the fascination with finding it?
Jonathan Downes, director of the Centre for Fortean Zoology, says the legend of the monster dates back to the 6th Century, but it was not until the 1930s that it really took off. (JD: Umm, no I didn't)