By March 2001, based on their extensive study, the museum team believed they had a fair idea of "Roebuck"s position in February 1701 when the ship sank. Arriving at the island, and anchoring over the approximate position in the bay where they believed the grounding site to be, they experienced the same unusually sustained sea breeze that Dampier had described some 300 years earlier. When they examined the seabed, they discovered that a large and very recent movement of sand from the bay had exposed rock and other formations not seen by local divers in the 40 years since diving first began on the island.