I'm organizing a hike for this Saturday.
The plan is next:
* Meeting next to Sagrada Familia at 8h in the morning
* Around 1 hour drive to the starting point of the hike 
* 15 kms hike, not hard, but sun and temperature can make it challenging 
* Lunch (you should bring it, I'm unsure on having places to get anything around there)
* Beach (see event picture)
* Back to Barcelona
If you want to come, besides signing up for the event, message me, as we need to arrange the cars.
See you there,