Tomorrow, so not much time to fit this one in -

Walk with an archaeologist: Durrington Walls and Stonehenge.

"Join Neolithic expert and National Trust archaeologist Dr. Nick Snashall for a day in the Stonehenge landscape to explore the relationship between Stonehenge and the great henge of Durrington Walls. We'll be walking around five and a half miles."

Organised by the National Trust. More here.