I'll take the good lady (not a rider really) and see if the bug bites!
I think that your good lady will like it; in terms of effort, the hardest bit is from the very start - winding (gently) up hill for a fair distance. Nothing very arduous though, so long as you don't start off too quickly. (Make sure that she does an appropriate route - even the shorter routes require a degree or time and effort; but ability wise, they are not 'technical' )
The cafe is very close to the carpark; when you've finished, load up your bikes and then take your good lady to the 'log cabin' cafe - food and drinks are very good and reasonably priced. It is usually best to 'bag' a table before queuing for food, unless it is obviously quiet.
Oh yes, there are some marked routes for walkers within the forest; so you
can take non-cyclists along and they can get in some exercise. If they don't wish to exert themselves, they can always sit in the cafe and watch the MTB videos on the big screen TV.
Something for everyone, really.
