Hi:
I just posted ("5 extra days in Spain"), asking for suggestions and, first of all forgot to say it will be the first week of May (2018). Secondly, I wanted to know if there are any RS tours I could pick up for just 5 days from either Valencia or Barcelona? Thanks!
There are no 5 day tours. Go to Our Tours on the left side of this page.
The only tours of Rick Steves you add on to independent travel are in Southern Italy: www.sharedtours.com. They are day tours. We took one of them in Pompeii.