Where you are from Billy I would say that PLym to Rosc is your best option. Ferries ands the chunnel up near Dover are complete Sh*te.. Been there, dun it - would never do it again!!
I could advise some routes from Caen but although I have caged from Roscoff,. never have I Biked from there.. Biking from Calais into south west France is pure Sh"t though (if you don't live in Kent
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