Merry Christmas to you, Nigel!
Having to travel a fair distance to attend RT is pretty common. I had a daily 90-mile round trip for mine. If you do have a reasonable distance to travel, find out where the loos are en-route in advance - they'll be essential by the end of treatment! In my case there was a convenient McDonald's at the half-way point, which was a life-saver.
Best wishes,
Chris