Boardgamegeek https://boardgamegeek.com/boardgameexpansion/51811/dominion-seaside
English - Dominion: Seaside is an expansion to both Dominion and Dominion: Intrigue. As such, it does not contain material for a complete game. Specifically, it does not include the basic Treasure, Victory, Curse, or Trash cards.
Ludovox http://ludovox.fr/jeu-de-societe/dominion-rivages-2824/
French - Extension pour Dominion
Official http://www.ystari.com/accueil/jeux/traductions/dominion/
French - Étendez votre domaine ! Vous êtes le souverain d’un paisible royaume verdoyant.