All beaches in Spain allow women to be topless. For those who aren’t keen on this, the general advise is to look for swimming-pools around the city. Most swimming-pools are indoors.
As I’ve been living here for ten years while trying out several beaches, I can recommend families to go to Las Arenas beach. This is the closest beach to the Port. You can easily get there by metro line 5 or taxi (max 10 euros from the center to the taxi stop at Hotel Neptuno).
Malvarossa beach is for the young folks. You can enjoy sweaty bodies playing games at the volleyball fields and enjoy louder music of several groups hanging out to enjoy the weekend and show-off. Go by tram from Pont de Fusta across the Serranos Towers and take line 4.After Malvarossa beach you’ll find Patacona beach with its surfers and hippies, along with Spanish families. It’s best to have a car to get here. By taxi it will be much more expensive to the city center and by bus it will take you longer than to other beaches.
El Saler beach is at the south of Valencia, next to the industrial port. The views aren’t spectacular and the water isn’t very clear. The further you go down the coastline the better it gets. Take the yellow bus. Check tourist information offices for up to date information on which line to take and where to wait.
La Devesa beach is the famous nudist beach at about a 25 minute drive from Valencia. The yellow bus takes you here as well though most people refer to this beach as El Pinedo beach. Straight, gay and lesbian come to this beach to enjoy the sun. This is clothing optional.For clear water and nicer beaches you drive about an hour to Cullera beach by car. One of my personal favorites though it offers no public toilets. It’s a bit of a challenge to get here but the views are much better and there’s a nice mix of gay and straight sun lovers. This beach is also clothing optional.