Yes, it's on your door step. Just drive from shops over hill to beach,  bottom of Hill turn right and then into car park on left. It's called carabassi. A bit further south is la marina beach and to the north is urbanova. Might be a bit cold at Christmas, but i have been on beach nude. Depending on time of year depends how busy it gets.

That's great thanks for information hopefully it might just be warm enough for a naked beach walk

Hi Neil, the Carabassi Beach is lovely.  We are in the area most months and have been on this beach throughout the winter, locals are in woolies but we Brits can brave 20C.  As Carefree says it depends on the day, usually warm enough but if its windy makes it too cool.  Sue and Mike

We also stay at a friends house in Gran Alicant and use  Carbrassi beach, we normaly drive passed main entrance on junction for about 1/2 mile and park on waste ground on left, then walk naked through sand dunes to beach, instead of board walk. 🙂
there is also a nice signed walks, which I have done naked near lighthouse.
Also like La marina, near Guardamar, we drive on N332 until we see sign just before Mercadonna supermarket and turn left on roundabout signposted camino, it's a dust track for about 1mile or so but takes you to 5 minute walk to beach along boardwalk again done naked when quiet. this naturist beach is about 1/2 mile long. 🙂
Enjoy

Sounds good hopefully it will be warm enough  ;D

Managed to find nudist beach at Gran Alacant after a long walk down a steep hill spent a couple  days on the beach nude not bad for December
Really nice sandy beach with dunes to the rear would imagine gets really busy in summer