YEP. LOOKS LIKE A CONVERTED SUBSURFACE FERRY, ALRIGHT. PRETTY (WATER)TIGHT. LOOKS USED AND RUNDOWN BUT NOT REALLY. CARRIES HYAKU OH (100 KINGS/TYCOONS); TOO CLEVER FOR ME. MAY HAVE AN UNDERWATER ENTRANCE/EXIT ON HULL BOTTOM YOU DON'T SEE. MANY OTHER FOREIGN SHIPS/BOATS/YATCHS MAY ALSO HAVE SUCH FOR SMUGGLING/ESPIONAGE PURPOSES. OBSERVE THE DESIGNS IN AEROSPACE OR HYDRODYNAMIC TERMS. SEE HOW THEY DIFFER FROM TRADITIONAL DESIGNS? YOU CANNOT DISGUISE FUNCTIONALITY TOO FAR.