Hi karyb, another long time lurker turned active member, I love it! Welcome to the group
Oh where to begin!!! In the 10 days you can get pretty far and get back to Barcelona in time to meet your friend but there is plenty close by as well.
On the Costa Brava I enjoyed "Tossa de Mar" and it comes highly recommended by others as well, just see the thread on it by
CLICKING HERE.
San Sebasti�n is NOT to be missed (surprised Sue did not sing its praises in her post above

). See the thread
HERE for more goods on S.S.
There is also a good thread
HERE on doing both Tossa de Mar and San Sebasti�n one after the other.
Cadaqu�s on the Costa Brava (Salvador Dal� and Federico Garc�a Lorca made it famouse as their summer playground) is also very nice and I am sure you will love it. More on it at
http://www.publintur.es/guiacata/cbrava/cadaques/cadaques.htm Getting away from the beach you can get a surreal cultural fix (if you like that sort of thing) at the Teatro-Museo Dal� in Figueres less than 2 hours from Barcelona. See the website at
www.salvador-dali.org
Llanes is a longer trip across the Cantabrian coast but in my opinion it has some of the most unspoiled and beautiful beaches in Spain. See
www.llanesnet.com for more (in Spanish only but loads of beach pics

).
I could go on all day!
Saludos,
jer...