Also there are good climbs to Guadalest from La Nucia/Polop and Callosa. I'd recommend the former of the two to go up, the latter to descend.
The road from Benissa through the Jalon valley is nice and would link in with Denia - Moraira - Benissa - Parcent - Pego? - Denia
If you find yourself in Benitachell then head up to the top of the hill with the aerial masts. Once you've done a couple of rides you'll be able to work out your own, there's tons of roads worth riding.
When you're off the bike there's a massive beach in Denia and the marina has loads of bars etc, but I've not been there in season so I don't know how busy the area is.
Javea has decent restaurants/beaches/shops. Granadella is a great cove to spend the day soaking up the sun, and Moraira is a lovely town with some more excellent beaches.
Enjoy, it's a fantastic part of the world