Loire Valley is one of the most spectacular places in France and maybe in Europe. There are lots of old castles which can be visited, but the distance between them is quite big sometimes, therefore you can’t just book a hotel in Paris and do one day trips, because you’d waste too much time commuting.
Loire Valley tours are the best option for making the most out of your visit in France. Buy such a tour from any tourism agency in Paris and you’ll have no other worry than take great photos during your trip. Usually, tour operators have deals with the inhabitants of Loire Valley villages, so you’ll have the chance to sleep in their guest homes and to eat food prepared by them in house. It is a great experience, to eat natural, organic food, from plants and animals raised without chemicals and all the stuff which may not be very health-friendly.
If you go to France and you want to visit more than just Paris, make sure to have at least two weeks available, otherwise you won’t have the chance to see too much and you’ll be in a hurry all the time. The ideal would be to stay in France for one month, but who can afford to skip work for that long? Last but not least, if you go for one month, you need to be very detailed with your vacation packing, because I suppose you won’t have shops all over the place in the countryside.