An Audio Tour CD of the Amesbury Treasures is now available which takes visitors on an hour long tour (drive) past all the Treasures sites, explaining the history and providing details of opening times. (click image).
The CD was produced in 2006 so you best check the sites themselves for contact information and opening times.
The CD costs $10 and can be purchased from the Amesbury Library
It is also stocked at some of the Treasures sites.