In reply to BenSends:
> Thanks Sean, we're keen to sport climb but Font may be on the cards earlier this year. Chamonix was mentioned to us but we were also told it's not the best venue for sport.
Chamonix has amazing alpine climbing but it’s probably not what you’re looking for.
I think that your three criteria - sport climbing, campervan, five days - are not particularly compatible.
Campervan, five days -> Font
Sport climbing, campervan -> tons of amazing places but they are all a long drive (10hrs + from Calais) so not for five days.
Sport climbing, five days -> tons of amazing places but you’ll need to fly/take the TGV and then hire a car.
The exception to this might be Sassuois but I’ve never been and don’t know how good it is. I would suspect a bit old skool and very stiff grades. It’s probably a good day’s drive from London where I live so from Yorkshire…