Yes. Giverny is only 9 km (6 miles) away, making the two an easy pairing. Spend the morning at Monet's gardens, then continue on to La Roche-Guyon for the château, keep, and village in the same afternoon.
La Roche-Guyon sits about 72 km (45 miles) northwest of Paris in the Seine valley, but public transport options are limited and often involve multiple connections. A private transfer takes you there directly, dropped right at the château, with no rural bus timetables to plan around.
A half day covers it comfortably. Set aside roughly 1.5 to 2 hours for the château and the underground passage leading up to the keep, then another 30 to 45 minutes to walk the village and riverside promenade. Add extra time if you want to linger in the kitchen garden or step inside the cliffside caves.
Long before it drew visitors, La Roche-Guyon was a village carved into its own cliff. Many homes along the main street still have rooms cut directly into the chalk, and some caves once used as stables or storage are open to explore. It's one of the few troglodyte villages you'll find within easy reach of Paris.
During WWII, the château served as the headquarters of German Field Marshal Erwin Rommel while he oversaw Atlantic Wall defenses. Wartime rooms and exhibits sit alongside the medieval architecture, giving the visit an unexpected modern-history layer on top of its centuries-older origins.
La Roche-Guyon is officially ranked among the Most Beautiful Villages of France, and it earns the title. Its château is built directly into a chalk cliff, with a medieval keep rising from the rock face high above the rooftops. Cobblestone streets, Seine riverside views, and a genuinely rare troglodyte setting make it feel unlike anywhere else near Paris.