Hi Mads,
As it happens, I am also from England, and have lived in Wales, where druidry used to be more associated with poetry, I feel. I was dismayed when Stonehenge was opened to these New Age druids, as there is no historical connection between Stonehenge and druids. They have made up history and traditions to suit their desires.
Recently, a friend has become involved with the "Celtic"/"Tantric" mix offered by, for instance, a couple calling themselves Marta and Robert (
www.celtictantra.com) which seems to me to have the very flimsiest roots in any provable historical practices or beliefs.
They offer "workshops" and refer to those who have attended as "graduates", which implies that they have valuable knowledge that they impart. Maybe, but I remain deeply sceptical.
I think the truth is that any spiritual understanding that the ancient Celts and/or Druids may have had has been 100% lost. Anyone telling you otherwise is trying to make money out of you.
Best wishes
Rose