The easiest way is always to arrive by the D18.
If you arrive by the A10 take exit 39, follow direction BARBEZIEUX-ANGOULEME, then exit MARSAS, join D18 direction LIBOURNE then D133 direction SAINT GENES DE FRONSAC, follow signs LA PREVOTE.
If you arrive by the N10 take the LIBOURNE exit via D18 and follow the indications above.
If you arrive by the A89 take the exit LIBOURNE LES BILLAUX and follow direction GALGON, cross the city and continue until BAFAVE then take on the left D133 SAINT GENES DE FRONSAC and follow the signs La Prévôté