Campsite roadway widths

BBAM

We're booked for a campsite in Brittany in July, we were there 12 years ago but not as caravanners. 

I was reading some stuff online and seen a few comments about the roadways being very narrow and hard to park the caravan on the pitch.. 

Now, I'm fairly confident at reversing but surely the design can't be such that its not possible ?? We don't have a motor mover so if its very tight we'll have to unhook and push, I doubt that will be much fun onto grass pitch..

Here's the campsite, http://www.camping-bretagne-atlantique.com/en/

Camping D'atlantique in Fousnant

Anyone been there and have an opinion on the spave available ??

thanks