Clumsy boats are a type of vessel that are characterized by their lack of maneuverability and stability. The two most common types of clumsy boats are ARKS and TUBS. ARKS are typically large, flat-bottomed vessels that are used for carrying cargo or passengers. TUBS are smaller, round-bottomed vessels that are often used for fishing or recreational activities. Both types of clumsy boats are known for their slow speed and difficulty in navigating tight spaces.