Roadmap:
Boat to Roscof >>
then Roelinger-Les Richeux in Cancale
then Fort de L'Ocean in Le Croisic
(you could cancel Cordeillan Bages in Pauillac, not worth the trip)
then Bras in Laguiole
then Paris (somme good 3* restaurants there: Gagnère, Martin, Barbot, etc..)
then back to UK
So, no need of sandwitches

H3