In Scotland, a loch refers to a body of water, typically a lake or a lagoon, that is surrounded by hills or mountains. These are usually freshwater bodies and are home to a variety of plant and animal life, including fish and birds. Lochs also hold great significance in Scottish folklore and history, with many legends and myths associated with them. Some of the most famous lochs in Scotland include Loch Ness, Loch Lomond, and Loch Katrine.