A television documentary on The History Channel in 2006 revealed that the two ships were found about 200 meters apart, lying at depths of 5 to 12 meters and 15 to 22 meters, respectively. The first galley measured 71.2 meters (239.5 feet) overall, 67.3 meters (220.7 feet) on the waterline and 20 meters in beam (65.6 feet), with a rounded bilge. The end of the stem curved back towards the stern of the ship, while the stern finial was in the shape of a fish tail. In general form, this vessel most closely conformed to what is known of Roman ships of the imperial period. The second galley was more rectangular in shape, measuring 73 meters overall (239.4 feet), 68.9 meters (226 feet) on the waterline, and 14.4 meters (47.2 feet) in beam. Ships of these dimensions were quite remarkable, exceeding by far the size of any known ships prior to the modern period, and still remain the two largest ever found.
http://voices.yahoo.com/are-roman-coins-waiting-found-site-caligulas-435220.html?cat=37
Has California claimed half of the coin as its own yet?