Hi Jamie,
About the B&B, they are called "Chambre d'Hôtes" (do not pronounce the H and the S in Hôtes). I'm not much into camping and biking, so I'm sorry I can't help on this part
.
From the looks of your post, you are more in the West than the north of France. In this case, the following locations might be interesting (in addition to Brest):
-Saint Malo
-Mont Saint Michel
By the way, our club fellow Geoffrey is in Rennes, which is not that far by the above :lol:
You could also visit Caen and the surrounding D-Day beaches, Deauville, Trouville, Fécamps, Etretat, Dieppe, Le Havre as well as Saint Malo and Mont Saint Michel as mentioned above... (check the map to plot your way through these locations as I wrote them in no particular order...)
Don't forget that Paris is a 3-hour drive from the above as well :lol:
If you need more info, please ask