The ‘Curasub’ Posted on April 29, 2013 by Virginia Cowell Nuytco Research designs and builds the ‘Curasub’, a one-atmosphere, four-passenger tourist submersible for operation off of Curaçao, Netherlands Antilles. Based out of ‘Substation Curaçao’, ‘Curasub’ dives daily at depths up to 1000ft.