I've come across travellers, who stick pretty much to teh hippy philosophy....namely use horses and traditional caravans, they tend to gather at Avebury over the coming few weeks ready for the solstice....which is always worth a trip...if just to see birds dancing naked on Silbury Hill.
Some of them are quite scary. I have to drive through it to get home frm swindon and usually its quite late, there are always people hanging about with skulls and candles and stuff. Not something that i really plan on doing.
Although saying that i was thinking about goin to the solstice just to look.