This beach near Arances is an absolute gem! The hill may be a bit steep for those on foot, but the view from the top is worth the effort. If you're driving, parking is available, but it can get quite crowded during the peak of August.
Stunning, but getting there is no easy feat. DO NOT attempt to drive down the dirt road to the beach - it is 4WD only territory and the steep decline just before the beach is near impossible to get out of with a 2WD car. The continuing road is even worse, so leave your car at the picnic area and walk the extra 800m to get to the beach. Fortunately, the beach is easy to access once you arrive.
This beach is relatively uncrowded and has parking available. Unfortunately, there is no surveillance, but the scenery along the route from here is quite pleasant.
This beach is stunningly beautiful and secluded. It's only a 10-minute cliff walk or a five-minute drive away. The water is quite chilly, but the sea is crystal clear. There are showers, amenities, and even a Chiringuito where you can buy drinks and snacks.
Make sure you check the tide before you go, as it may be pleasant even if there are no sandy beaches, just rocks.