Exciting news, though a bit short notice. Working for Recovery, based in Scotland, is leading an Imbolc retreat for women on the Isle of Lewis, including time at Tobar Bhrìghde (Brigit's Well) and the Callanish stones.
I hadn't heard of these folk before but the little I've read just now I find very interesting. Aside from retreats for people in recovery, (which is defined as recovery from mental illness or mental distress) they train professionals and have a ten week online course. Formerly they had a house where people could take mental health breaks, but that has now closed.
About the retreat: