Info from
English Heritage website:
Parking and entry will be free, subject to the Conditions of Entry. Please do not arrive at the Designated Car Park or Stonehenge in advance of the opening time.
Sunrise will occur at 04.58 on Monday 21st June 2004
Designated Car Park Opens - 2000 hours (8pm) Sunday 20th June
Access to Stonehenge - 2200 hours (10pm) Sunday 20th June
Stonehenge Closes - 0900 hours (9am) Monday 21st June
Last Admission to Designated Car Park - 0800 hours (8am) Monday 21st June
Designated Car Park to be vacated - 1300 hours (1pm) Monday 21st June
• Bags
Large bags, rucksacks, sleeping bags and similar items will not be allowed on site. Please leave bags in vehicles.