Austral USA built the "Lake Express" for service across Lake Michigan, and the "Alakai" for Hawaii Superferry. "Huakai", the second high-speed vehicle-passenger catamaran for Hawaii Superferry has been launched at Austal USA. At long, the new vessel is longer than the "Alakai", thanks to a bi-fold ramp, added by Austal to its stern, for use in austere ports without shore-side loading facilities, making it suitable for military use. The National Geographic Channel series "MegaStructures" featured an episode in September 2007 that detailed the construction, launch, and sea trials of the "Alakai", the first catamaran Hawaii Superferry.