From Trieste continue toward Rijeka (Fiume), taking the highway after the Croatian customs. After the tunnel, take the Matulji-Opatija exit. At the stoplight turn left, then bear right at the first intersection. Your destination is 70 meters down, on your right.
Gone Trieste-Rijeka (Fiume) Triest Railway station ticket 7 €
Return Rijeka (Fiume) - Trieste ticket 7 €
From the train station of Trieste (for times and trains www.trenitalia.it), take the bus to Matulji.