Korseon - Fourni proper is a vibrant village with rather an amazing shopping "couple of a hundred feet" on the Agora and a sleepy and secluded platia. The shops cater for the islanders' daily needs, you will be hard put to find a souvenir shop.
The life pulsates at the harbour front. Mercifully, not every islander owns a car, but there is not one without a fishing boat. For the action you will want to check the shipyard at the back of the harbour.
Most of Fourni's 2000 inhabitants are fishermen by birth and occupation, but the over-fished Aegean offers a declining livelihood. Nonetheless, they hang in there with a passion.