by the touristic small road (D669) by Bourg, Gauriac and Plassac from the south of Blaye. Beautiful view about the Gironde estuary and its islands.
The shortest :
by the D1137 : from the north take the motorway A10 and exit n°28 and from the south take the direction to Paris and take the exit to Blaye.
By public transports :
If you don't have a car, you should take the train to Bordeaux or St André de Cubzac and take the coach n°201 to Blaye. From the railway station you have to take the tramway C to the Porte de Bourgogne and take an other one, line A to Lormont Buttinière, then the coach.
If you take a plane to Bordeaux, you have to take a schedule to the center of the town or to the railway station and after you take the coach n°201 to Blaye.