Balilove

My husband and I are visiting France for the first time in March. During our seven night stay in Paris, we want to explore Normandy for a day. I'm looking for recommendations on whether to just take the train and wander around on our own, or perhaps join a group tour?

We typically enjoy exploring on our own, but I'm not sure if it's really possible to just get off the train and visit the sites.

Any suggestions and recommendations?

Thanks!