Barcelona july 28-sep 21- any au pairs, locals, hikers, climbers?

Hi I am from California and will be an au pair for 2 months with a family in castelldefels near Barcelona. Looking to meet up with other aupairs/ tourists/locals on weekends for sightseeing, tourist stuff, bars, etc. Maybe even a weekend trip to see France? Also really into hiking and backpacking if anyone has any suggestions or wants to plan something! I'm trying to figure out what exactly to pack right now. I'm also only a beginner rock climber but it looks like there's some very cool outdoor climbing and gyms if anyone wants a climbing buddy! Feel free to message me, cheers!

Hey! I'm an au pair in saint ferliu and we go to Castelldefels every weekend! Did you go to the festival last weekend?

Nope I'm not there yet, I will be in Spain the 28th