Adam Stanford of Aerial Cam has just put this video out, the music has rather a hypnotic affect on you. The rock art is pecked into the stone and shaped like a 'heart'.
"A decorated stone was found in St.Ola, Orkney, within part of a Neolithic Structure, it has been dated to 3,200 BC making it the oldest rock art on Orkney."
https://www.youtube.com/watch?v=siJ_0Vcv6QQ&feature=youtu.be
More information below, the Neolithic structure can be found at the bottom of Wideford Hill.
