We first arrived at midday but were turned away, as it is closed from 11am on the morning of the summer solstice, after a huge overnight / early morning celebration attended by over 20,000 people. According to a chatty member of the local constabulary it was re-opening at 4pm. We were back a bit early but it had just re-opened.
This was just awesome; I can't begin to describe how magical it felt, being there on this day of days. The structure itself needs to be seen in real life, photos just don't do it justice.
We explored Old Sarum, as well. It's another site that needs to be seen in real life as the photos just can't put it into context. It's a huge hill whose first settlement dates back over 2000 years, and was used as a stronghold by the Celts, the Saxons and the Normans.
The hillside dominates the landscape on the drive into Salisbury.
All in all, an amazing day.