There are plenty of sites (non-bookable) around Francorchamps. Avoid the one behind the hotel, as they will rip you off, good and proper! But there are no proper facilities in many of them - however, they are cheap and cheerful. We will certainly be going back to our favourite one for the 24 hours, which is on the hill above the main entrance - at night we could see about 6 different bits of the circuit from there. But it is very basic - though at 8 euros a night, who's complaining?
Termie
Can you really just turn up and get on one of these sites? I'd need somwhere that had a wateer tap, and somwhere to drain the chemical toilet.
cheers
Gib
No loos or anything like them in the place I mention (I've never been to the LMS race but many of the car parks take tents too - and there are loads of them - so I don't think there'd be a problem; at least some of the makeshift sites - including Malmedy etc - should be open.) The site I mention which is a rip-off (8€ a day for a small tent, add another 8 for a big tent plus another 8 for your car, plus extra for power and water....) does have better facilities, but my you pay! On balance Eau Rouge or Spa D'Or (which runs a shuttle service to the circuit) are probably better if you need more than the basics.