In Northern France all railway connections go through Paris. It seems that TGV seats toward Paris are sold out often, at least the interrail quote. That happened to me now third time when tried to get a seat from Antwerpen to Paris. So again trip was done using small local TER trains and several changes.
We found our way from busy Gare du Nord to Gare St Lazare from where the trains to Normandia are leaving. Enjoyed some jazz at the station and found a lively lunch restaurant across the station.
The town resembles small Lissabon with its steep hills. The neighbouring Deauville is more flat and like a jet set place with its film festivals and old villas. Sandy beaches are on both sides.
I am still confused with the ebb and tide, when the water is rising and lowering, but maybe I learn during this trip.