Although I'm not a Wally, I do remember the shouts of "Waaally" at festivals in the early 'seventies.
I first attended the Stonehenge Free Festival in 1976. The main reason for me attending was the appearance of Hawkwind - and it was a bloody good way to spend a week. The fact that it was at Stonehenge at the summer solstice was just coincidental to me.
Oh, nearly forgot......one night I got hypothermia.