I’ll need to come up with a standard response to this as its likely to be an FAQ
In you case its a simple yes. Just ride the loop of Bridleway around the centre Parcs itself. A great child friendly ride. Some is a bit straigtht and boring but some is quite fun. I think i prefer anti clockwise
Woburn would also be good for an 8 year old but I’d drive their and its hard to navigate once there
You can ride to Woburn on a mixture if tracks and roads but it would be to far for any 8 year old I’ve encountered
There is also quite a good bit of Bridleway nearby accessed via Milbrooke village behind the test track. Some of the stuff in their might be a bit steep for an 8 year old
You can also ride into Ampthill on a cycle path and treat your son to a cake etc.