The term 'Indonesian Boat' can be broken down into three crossword solutions: Prahu (5 letters), PROA (4 letters), and Prau (4 letters). Prahu is a traditional Indonesian boat that is typically made of wood and has a single outrigger. PROA is a type of boat originating from the Austronesian peoples of the Pacific Ocean, which is characterized by its asymmetrical hulls and double outriggers. Prau is a type of Indonesian boat that is similar to a PROA but has a single outrigger. All three of these boats are commonly used in Indonesia for fishing, transportation, and other activities.