re: Deciding On A Vacation Location That Includes My In-Laws

If they like to explore and see sights, then Paris followed by a road trip into Normandy might be a great combo. The DDay Landing beaches and associated sites are moving, easily visited, and surrounded by delicious Normandy with its cheeses and cider.

Or, if London seems more their speed, you could side trip to Bath, Windsor, Oxford, and other smaller cities/towns.

But if you want a slower pace, Ireland could be ideal. The country has any number of great country house hotels where looking out at green hills while sipping an Irish coffee and watching the rain fall is a perfectly acceptable way to pass the afternoon. Ballymaloe House in Cork is one such spot, famous for its associated cooking school: LINK