In reply to muzag:
You are staying so close to one of the best multi-pitches in the area it would be a shame to miss it. Espolon Central Direct on the Puig de Campana - never more than HS, a full and great day out.
We found the easier Echo Valley multi pitches - typically 4 pitches - were very unbalanced and in parts scrappy.
Sierra de Toix Oueste is a very good venue where you can combine single pitch sport with multipitch routes that are mainly fully bolted. Espolon Limaban at 5a and Espolon Gris at 4c are good intros to the multipitch, and just along to the east is Toix PLaca, where Oma Sus at 5a has a great top pitch. Loads of good single pitch at Placa also.
Guadalest is an interesting venue, with a mix of single and shorter multipitch but I found the grades a bit tough there. Its a nice town though with good cafes!
Hope this helps as a starter
Dave