If you are looking for a place for rock climbing close to Barcelona, by the sea, and that’s accessible by train: Garraf Platja is the place for.
You can get there by train (30 Minutes from Sants Central Station). When you get to the beach in Garraf turn right, walk passed the harbor, turn right again, walk through the tunnel, after the tunnel just follow the dirt road up the hill and there you are.
There are three sectors: El Coti (5-6c), El pas de la mala dona (5-8a), and El Balcó del Teixi (5-8a). Some routes are extremely slippery and overclimbed.
Here are a few routes that are recommendable:
EL COTI A
Nocilla Experience (6a), La mataré (6a+), El Pitufo (6a), Chapeau melon et bottes de cuir (6a).
EL PAS DE LA MALA DONA C
Promethea (6b), Arale (7a), Mossa (7b+)
Routes are available in Climb Around (http://climbaround.com/app/).