Classic Time Team Season 9 Episode 3 Diving for the Armada

The team travel to Scotland to investigate the wreck of a ship that may have been of the Spanish armada. As this is a classic case of rescue archaeology, they are joined by the Archaeological Diving Unit, whose director explains why this exercise is so important. Both Phil and Tony do some diving. With the help of marine archaeologist Mark Lawrence, John uses a magnetometer to survey the seabed.