Paleohora, spans two beaches one stony and one wide and sandy, the latter with tamarisk trees that are sometimes camped under, and good windsurfing. There is also an official campsite. Called Castello Selino by the Venetians, for the castle built on the tip of the peninsula in 1279, more for local control than protection against invasion from the sea, but captured and destroyed by the notorious pirate, Barbarossa in 1539. This village stays warm in winter, and probably a nicer place to be then, as it has become increasingly crowded in summer, with the tavernas and bars on the main avenue overflowing in the evenings. On the positive side, it seemed to be geared towards the cheaper end of things. Some foreigners now live here year round. There's a new marina that now dominates the point where the castle is, though there isn't much left of it besides some broken walls.
To the west, Aghia Kyriaki is a nice pebble beach with very clear water, and, closer to Paleohora, Grameno beach on a small peninsula has shade trees, and Yialos has rooms but also plastic greenhouses nearby. There are some secluded bays along the coast where you can camp too.