In the Pagasetic Gulf south of Koropi, just before Afissos, is a beautiful beach at "the cape". Last part is totally nude. Easily accessed from Koropi: take the path to the right at the point where the road begins to climb going towards Afissos.

2007: Reports suggest that the beach is now textiles only.
2009: Report that the beach is totally for gay nude guys, it is called Ramnos - or the name of the nearby taverna, Paradeisos… the gay section is behind the rocks.

Another gay nudism beach is near the city of Volos on the road to Agria, 500m before the cement factory. See on Google Maps