It may be hard to imagine giving up one of your precious days in Paris for an excursion outside the city - whether only a half-day or full day-trip - but there are few places that are definitely worth the sacrifice. In fact, some are so charming, they hardly feel like a sacrifice at all, and will only add to your vacation.
The Loire Valley
Discover the castles of the Loire Valley, just a short train ride from Paris. Worthy of a few days more than just a day trip, there is much to see and do in the Loire Valley, from vineyards to chateaux.