Is the resort one of the new all inclusive resorts? If so did you get out and explored a bit. Alikanas/ Alikes is a little to touristicky for my tastes, but once you get out of the resorts Its a beautiful island, as are all the Greek islands I have visited.
I haven't tried santorini yet what is is like for naturism?
I agree with Yannis (from another thread) that August isn't a good month to go to the islands. I live in Athens and everyone goes away in August. June and September are great months for exploring the islands.
I went to Elofonisos a couple of years ago and there is a nudist beach there, but out of the 3 beaches it was the worst, windy and rough sea. You could go al natural on the other 2 beaches however with no problems.
This is making me miss my holidays now, as I havent been away yet this year