In reply to robinge:
I feel if you ask nicely and possibly buy a beer or two, one of the b&b/hostels/refugios might let you post them there.
I've used a placed down there, forgot where it was and it didn't have a name at the time because it was a guy just starting out.
I've got friends who swear by Gat Friction which is based in Alicante, so might be worth a look.
Good luck.