Dolphinman - Wrecks Old and New Click on pictures below to see an enlargement. Plus see resume below the pictures

In Presentations to schools the first section covers boat building and how ships
  are lost. We then go underwater and see how the wreck is used like an artificial
  reef, offering a safe habitat for animals to rest or feed and a nursery for
  breeding, ending with my experience of working on a treasure wreck.
All the presentations fully cover all aspects of field craft and water safety.