Two ships belonging to the Hellenic Center of Marine Research are shown off Santorini yesterday conducting a geographical survey of the spot where the Sea Diamond cruise ship sank last month and videoing the shipwreck. The data will be given to the firm overseeing efforts to siphon fuel out of the wreck. The ship's black box is currently being decoded by experts in Florida. In a few days, a Greek prosecutor is to bring back the findings, including all conversations that took place in the ship's control room and information about the vessel's course and systems.