Back in 2009/2010 I lived in the North of France for 9 Months. I was lucky enough to be able to visit some of the most stunning places up there. Admittedly, it’s quite a challenge to dig out new places to visit over such a long period of time.
Etretat is a stunning little places that is best known for it’s stunningly beautiful cliffs. The village itself is beautiful but packed with tourists. Since it’s such a touristy place there isn’t much to do besides going for a walk, enjoying a coffee or some nice food or even spending some time at the beach.
Depending on what you like, I would probably suggest visiting more than one place while out there. I am sure there would be ways to spend a whole day in Etretat, but there are other small places close by like Honfleur (stay tuned for it) which are beyond lovely but equally, in an hour or two you’ve seen it all.
The easiest is getting around by car. Especially if you are looking to explore more than one place on a day. I am sure there are also local buses between at least Le Havre an Etretat. Le Havre is easy to reach from Rouen/Paris by train, too. Just check out SNCF for more details.