Access to domaine de massereau

Hello everyone, I was just wondering if anyone can help. We have booked to stay at Domaine De Massereau from the 31st July until the 9th Augushp. I have just read the directions given by the club which say to avoid the route that comes in via sommierers between 27th July and 8th August, due to a festival, which means approaching the site from the south on the D12 with a right turn into the site. I have read on another site that this right turn can lead to the caravan grounding out and it's best to approach from the north on the d12 where the turn in can be taken at a better angle. Having looked at the map there is no place to turn around on the d12 if you drive past the site as you would come into sommierers. Has anyone on here approached the site from the south on the d12 and is it as bad as what is being made out.