By plane :

 Beziers-Cap d’Agde airport
   Direct link to Paris. Daily flights (AIR FRANCE).

By train :

  Rail station in Agde: daily links by TGV.
 Shuttle bus from the station to Cap d’Agde stopping near Hotel Opal.

 By car :

  Autoroute A9 Agde exit then 15km by RN 312,
Autoroute A75 via Clermont Ferrand,
RN12 between Beziers and Sete.