The Loch Ness monster, also known as Nessie, lives in a lake in Northern Scotland. "Loch" means "lake" in Scottish. Many people have seen the monster. Nessie looks like a plesiosaur dinosaur.
The first person who saw Nessie was Saint Columba, an Irish monk, in the year 545 A.D. In 1934 doctor Robert Kenneth Wilson, from London, took a picture of what looked like a plesiosaur. In this famous picture, you can see a long neck coming out of the water. The local people started going to the lake to look for the creature. At first they didn't think it was real, but since the picture has been taken other people have claimed they also have seen Nessie. There are at least five other pictures of the monster. Today, the Loch Ness monster has become a tourist attraction. Visitors from all aver the world go to Loch Ness and hope to see the monster.
Nessie has never been caught. Scientists have been to the lake with all different kinds of equipment to try and find the monster. They even used a mini submarine but they didn't find it. Nobody knows if Nessie really exists. Maybe one day we will know the truth.