Bleu is opposite Maison Blanche, divided into 2 areas, main area along the road, grass with a track running through it. Can get very dusty if dry. Second area is overflow field behind, opens Wednesday, long grass that has been cut and then left. You find grass in your camping gear for months afterwards.
Its about a 10 minute walk to the tribunes, and compared to other sites I would describe it as quiet, although it has been getting noisier recently. Big advantage is that there is space to set up, especially in 2nd field, untill Friday, and then it starts getting crowded, although in 2005 it was fairly busy from Thursday, probably a combination of Aston and Pescarolo pulling in the crowds. Cosmopolitan mix of campers Uk/Dutch/Danes, even some French campers. Facilities limited, but kept clean, usual bog blocks, bring your own shower, it's easier. No power.
Best decribed as a very laid back site, rather than a party till you drop one.