A narrowboat is a type of boat specifically designed for navigating the narrow canals of the United Kingdom. Typically measuring about 7 feet wide and up to 72 feet long, these boats are built to be long and slim, allowing them to fit through the narrow locks and waterways. They are often used for leisure activities, such as cruising and living aboard, and can be equipped with amenities like kitchens and bathrooms. Narrowboats are usually powered by diesel engines, although some are fitted with electric motors. They have a flat bottom, which helps them navigate shallow waters. Many narrowboats are painted in bright colors and feature decorative designs, making them a charming sight on the canals, which are often lined with canal-side gardens and historic buildings.