Hey Edge,
Our friends at
Oceano Surf School / Costa de la Luz - El Palmar Surf Shop / Surfboard and Wetsuit Rentals says it's Costa de la Luz, between Tarifa and Cádiz has the best and most consistent good waves for surfing, particularly the beaches of El Palmar in Conil. Costa de la Luz. hosts several barreling beach breaks and a few excellent point and reef breaks.
Enjoy your trip and when you return a trip report would be most excellent.
If your by the surf shop tell Rosalia we said hi!
Cheers,
Dan