Part 1 - Getting started. In this video join Underwater Archaeologist Dr Jon Henderson, as he embarks on a race to save an ancient submerged Greek town.
Dr Henderson talks you through the plans to conduct groundbreaking underwater archaeological research to properly survey the town of Pavlopetri, off the coast of Laconia.
The town is believed to date back to at least 2,800BC.
You can also join Dr Henderson beneath the waves in Part 2 of this video.