One of the most important crags in Sella is WildSide, which probably is the best one in Alicante. Difficulties vary from 6c+ to 8c. The place is amazing and the routes are beautiful.
"El club de la Lucha" 8b+ Wild Side from Serrameua.
Probably Sella is the most famous climbing place in Alicante. It is near Benidorm so you can also enjoy Spanish fiesta and Beer easily. There you find all kind of climbing routes and also has a refugee where you can ask for climbing topos and advises.