we were hoping to have a holiday during the summer holidays but now may have to wait til october half term

anyway, we were planning day trips to port aventura and the water park ,which ive checked and are still open so thats all good
was also planning a day to Barcelona as my eldest son is footy mad and would love to visit!! is the tour of the footy stadium available during october???
also any info on things to do in and around ( within an hour or so drive)costa brava during october would be appreciated
we are hiring a car so dont mind having to drive a fair way for somewhere good

also what can we expect weather wise ??!!
TIA
Rach