was concealed and protected by the sheltering earth,
stabilizing the walls and filling them in to preserve the furnishings inside.
an ancient stone circle with a large moat-like ditch surrounding it.
It is thought to be a ceremonial site about 4000 years old.
It is similar and possibly related to the more well known Stonehenge.
I wish we could have seen more of the islands, but we were only there for a day.