Yes, you are right, you see Jardin d'Eden. Actually, there is more than only Hotel Eve. Since a few years there is the Natureva Spa resort (with also offering hotelrooms) which is located just nearby the entry of the naturist quarter and between the Natureva Spa resort and the camping they are building a new hotel (Hôtel Le California) which opens next spring (2011). Hotel Eve = **, Natureva Spa= *** (if i'm right) and the California Hotel will be ****.
Acces to CDA is easy by plane. Ryanair is flying frequently to the airport of "Beziers-Cap d'Agde" which is located near the small town of Vias between Beziers and Cap d'Agde. A shuttle bus will bring you to the trainstation of Agde where you can take a bus which brings you to the naturist quarter. I suppose that if you are comming from South America you have a flight to London Heathrow and then you change to London Luton to get a plane to the South of France. Alternatively, you may have a plane from New York to Bristol and take there a plane to the South of France. Just check the websites of the flightcompanys.
Costs of food and meals are reliable. One of my favorite restaurants is the Ghymnos which offers very good pizza's for only about 11 euros and steaks (with french fries/salad) for only 10 - 16 euros. They also have an open kitchen, so you can see how everything is made!!!
And for those British people who are missing their own food, the small Vival supermarket at Port Nature sells also some British food.