Hi again, we usually take the ferry but have previously flown into both Beauvais and Rennes. Beauvais is in the middle of nowhere and I would highly recommend you take a car with sat nav if you go there. Rennes is a large city with good signage so found that easy enough to navigate. Mind you, sat nav will make the entire holiday a little easier so you might think about that.
Granville is a large town ( my husband, who went to university there, calls it a city) and we are fairly happy to spend a lot of the holiday just mouching about in the town itself which has lovely walks and scenery. However from here you can also take ferry rides to Chausey, Guernsey and Jersey. We tend to stay in a self catering apartment and I can pm you the name and number of the owners if you like. The largest supermarket is E LeClerc and you need never cook a meal if you prefer, just get ready cooked food from the deli counter and bakery which is delicious.
But we have also stayed in the Hotel des Bains which is a three star hotel, comfortable and right on the sea front. It is very reasonable rates- ph 02 33 50 17 31 ( add on French telephone code)( [broken link removed].) They should have an English speaker to deal with you if you are not fluent enough. Make sure to reserve a car space for this hotel also when booking as there are very few spaces outside this hotel. The hotel is near a very old Casino ( not noisy) and on the sea front with a lovely walk right outside. The Christian Dior gardens are nearby. Also there are steps up to the old town where there is a museum and the church of Notre Dame which is really beautiful. You can light a candle and put your prayer in the prayer book etc. There are lots of cafes, antique shops and artists studios up there. Along with the Mur d'Atlantique- lots of history up there.
We tend to take a coffee every morning at the Marina ( now that there is no smoking in cafes/rests/bars in France it is so pleasant to relax with a cup of coffee overlooking the boats on the marina. Naturally we stop at one of the many patisserie shops before hand to bring a croissant or cake to have for breakfast...Along the marina there are lots of restaurants and if you like seafood you'll be in heaven.
If you're going with kids let me know as there are a few attractions around for them too.
I would highly recommend a day trip to St.Malo and to the Mont St.Michel.
Caen, although as I said not a pretty town, does have that war museum, and honestly all along the north shores you cannot miss the war memorials, graves and museums everywhere. I love the Brocante shops over there too and if only I could bring a truck with me I'd fill my house with french furniture!
Hope this helps, and let me know if you'd prefer self catering- the apartment is a one bed apartment but the living room area has a sofa bed so can comfortably cater for two bedrooms. It has all you need really for a holiday.