I just come back from visiting the "Argentine Riviera". Except for warning fellow sensitive souls (and wallets) that by no means whatsoever is it worth visiting during season, In this post I'll hold back all negative comments.
The seafood is to my surprise truly decent, the alfajores and chocolates veritably delicious, and nowhere in the World (to my knowledge) can one go horsebackriding so inexpensively.
I still have to bring myself to visit Mar del Plata proper.