Here are some ideas for day trips out of our three destination cities (a mix of close and far)...
LONDON
Cambridge
Oxford
Bath
Leeds Castle
Stonehenge
Windsor Castle
Cotswalds
Stratford-upon-Avon
Warwick Castle
PARIS
Versailles
Chantilly
Vaux-le-Vicomte
Giverny
Honfleur
Normandy Landing Beaches
St. Mâlo
Le Mont St. Michel
Loire Valley Châteaux
AMSTERDAM
Delft
Brussels
Bruges
Utrecht
The Hague
Windmills of Kinderdijk
Tulip Fields of Lisse
Leiden
Gouda