The Pilgrims Association – resource site for information about the many fascinating places of pilgrimage in the UK:
http://www.cathedrals.org.uk

Celtic Trails Tours – Tours to many interesting sites associated with Scotland’s ancient and mystical past, by Jackie Queally; tours, pilgrimages; workshops; is recommended:
http://www.celtictrails.co.uk See also www.templartrails.co.uk

Places of Peace and Power – Sacred Site Pilgrimages of Martin Gray; great site:
http://www.sacredsites.com/index.htm

Gatekeeper Trust – UK-based charity; a programme of amazingly diverse pilgrimages to sacred sites in Europe; workshops; started by Peter and Sarah Dawkins; recommended:
http://www.gatekeeper.org.uk/