A canal boat is a type of vessel that is used to travel through canals. The most common types of canal boats are scows, barges, and gondolas. A SCOW is a flat-bottomed boat with a shallow draft, making it ideal for navigating shallow waters. A BARGE is a large, flat-bottomed boat that is used to transport goods and materials. Finally, a GONDOLA is a long, narrow boat that is traditionally used in Venice, Italy. All three types of canal boats are used to navigate canals and other waterways.