I’ve just found out I’m going to be working a few miles from Hadleigh Park tomorrow so may take the bike with me.
It’s not clear from the website whether the Olympic circuit is available to all or whether you have to take one of their ‘Led Rides’ What’s the score?

Just rock up and ride. Pay to park if needed.

As above – car parking is per hour but it is free to roam around the track.

I went there for the first time last year – ‘interesting’ mix of CXable gravel and 😯 that’s a bit steep on an XC bike…

[url=https://flic.kr/p/HTsbnm]Olympics Hadleigh Park[/url] by oxym0r0n, on Flickr

Live local and regular there, pay in car park as above (as I do) or park in Chapel lane and ride in (as some tight arse mates do)..Check hadleigh mtb club website to make sure no racing going on before you turn up.