Apart from La Chiappa has anyone knowledge of nude beaches or CO beaches in the south of the island. I understand there is one near Palombaggio and also Stagnolu near Bonifacio.
Palombaggia is not designated as naturist, but there are often naturists in several areas around the beach (though not on the main beach).
I remember reading about Stagnolu, but I have never been there.
A little further to the north, there is of course Carataggio (40 mn walking along the coast to the north of La Chiappa - or a long trek down from the road), again no officially designated, but often used by naturists from La Chiappa. On the footpath between La Chiappa and Carataggio you will often meet people walking nude. The beach is referred to as "Tahiti Beach" by the staff at La Chiappa.
Further north still, although Villata is no longer a naturist campsite, the be
(sorry, reply sent too soon).
... the beach is still officially naturist opposite the (now) textile campsite.