It's a couple of KM away from the village, but well worth the effort (tho it's no effort really - a hot half-hour walk, or 5 minutes by bus / car / motorbike).
There's a cafe with plenty of shade at the entrance to the beach - turn left here and there's a beautiful headland a half a mile walk, which is worth the effort to climb for the views. Turn right at the cafe and the beach goes on for ever (how many KM is it, anyone?!), and it's so quiet after the first few hundred yards.
You can also access the beach by walking through the village centre, up the hill, and back down through a (pine?) forest, and finally over some scorchingly hot sand dunes. This is a beautiful way to get to the beach - well, one you get to the forest it is anyway - but be warned, if you are in flip-flops your feet WILL be charcoal by the time you get to the water!
There is a small fee if you go by the road (though this may be levied more for the ruins? I'm not sure), but not by the forest / dunes route.More