Here a researcher examines the anchor of what may be the Antikythera wreck or another wreck nearby. They are uncertain because they used Costeau's Antikythera expedition videos to gauge where to anchor their boat. Since some of the shots in the video were almost certainly staged, the researchers can't be sure they weren't diving at a site hundreds of yards away from the site explored in 1976. -- CREDIT: Hellenic Ephorate of Underwater Antiquities and WHOI
collision? :p
How could the wreck be shallow enough for sponge divers to reach (no dive gear), and yet be too deep for SCUBA divers? That makes no sense to me. Maybe they were phenomenal divers, who knows?
When I was younger I could free descend to about 75 feet and could hold my breath for 3 minutes, but that was after spending an entire summer, 8 hours a day, swimming.