The outrigger canoe is a type of canoe featuring one or more lateral support floats known as outriggers, which are fastened to one or both sides of the main hull. Smaller canoes often employ a single outrigger on the port side, while larger canoes may employ a single-outrigger, double-outrigger, or double-hull configuration (see also catamaran). The sailing canoes are an important part of the Austronesian heritage. They are also very popular in Puerto Rico.(Wikipedia)