In English, this paddle sport is also known as outrigger canoe. Navigation between the islands of Tuvalu was carried out using outrigger canoes. BC also bringing cultural elements such as the outrigger canoe. Polynesians on outrigger canoes discovered and colonized some of the last uninhabited islands of earth. These wayfinding techniques, along with outrigger canoe construction methods, were kept as guild secrets. Various parts of the mastwood were integral to the manufacture of outrigger canoes. The Schuylkill River is very popular with rowing, dragon boat, and outrigger paddling enthusiasts. Austronesian groups continue to be the primary users of the outrigger canoes today. Multihull ships are also derived from outrigger boats. Other pieces became masts, outrigger floats, and outrigger spars. Their leaves were traditionally woven into mats used in the sails for Austronesian outrigger ships. The HUP-2 was provided with a pair of stabilizing outrigger floats positioned amidships. Unlike ancient vessels, which used an outrigger, these extended directly from the hull. If a single outrigger is used it is usually but not always windward. The launching arm features a large bar that features as an outrigger during emplacement.