These boulders are in Anogi, Ithaca in the the Greek Ionian islands. They're some of the only worthwhile climbing on the island. There are about 20 odd completely undeveloped limestone boulders and pinnacles (the prominent one is about 30") on private land. I had a scramble about, but scarpered 'cos of dogs. I'm sure the owner would let you climb though, assuming you can speak some Greek, the locals all seemed friendly enough. These boulders are very worthwhile if you're on the island.

Bizarre connection but my dad (Iain Peters), brother and I did a route up this boulder (Arakli) in 2003/4ish, when we lived on the island. I'm now back on Ithaki and got to this picture by googling 'anogi bouldering' - yours is th only relevant link that comes up. Hoping to get up there a bit over this winter and poke about...