Looking to take some day trips by train from Paris on a Sunday and Monday in June. Aside from trains running less frequently on a Sunday, would like to get out to Giverny and am debating whether to try to get there early enough that we could potentially continue on to Rouen and spend the afternoon/early evening in Rouen before returning to Paris the same day. Has anyone done both Giverny and Rouen in the same day from Paris by train? I don't really want to buy the Monet's Gardens tickets in advance in case the weather is lousy that day. Am I ok winging it and purchasing them at the gate on the day I arrive? Or do I want to at least go to the Impressionist Museum first and purchase a combo ticket there to bypass the ticket buying line at the Gardens?
Monet's Gardens and the Impressionists Museum in Giverny are both open on Sunday, but as far as what is open/closed in Rouen, will most sights and stores be closed in Rouen on a Sunday? Just trying to plan if I should do the Giverny/Rouen combo on a Sunday, or wait until Monday.
If I can reasonably fit both Giverny and Rouen into a single day trip, I would like to use the other free day on Sunday or Monday to decide on another day trip to either Vaux le Vicomte, or to Orleans (not so much for sightseeing, but for family tree research and to walk around the town for a few hours). Any comments or tips on either of those welcome. Thanks.