I did this race as my first ever fell race and thoroughly enjoyed it. It is beginner friendly in so far as the course is marked out so there's no navigation worries, taking a nice circular route over the moor. It is 'about' 5 miles long so not too far and you're never really far out in the sticks. It is a challenging route though with a fair bit of climbing packed into the 5 miles and all mainly in the first half - enough to make you feel like you've done something worth while when finishing.
Postal entries only and there's a 300 limit, entry details
here
I'm going to run it for the second time and see if I can flog myself around any quicker then the first time I did it.