During summer (June to August) you usually have a nice thermal wind (10-20knots) which starts to blow from beginning of the afternoon (with the tide) up to the end of the afternoon. Direction is usually West to Northwest in the afternoon while it's East in the morning. September to October is the blowing season with depression bringing strong wind up to 35-40 knots. Direction is usually West to Southwest.
From Bordeaux drive all the way north on N215. Le Gurp is located between Soulac-sur-Mer and Montalivet-les-Bains. Big parking lot in front of the beach.