I've done it as well here is my proof
did 2 years south of France, Corsica, Sardinia, Spain and balearic islands on a Contest 29.
Did Biscay and Canal Du Midi on the way down, rhone ,soane, canals, Seine into Paris, Honfleur, home.
Was talking to my misses about it, we reckon 2 days getting the $hit kicked out of you on a 22ft boat in the middle of a storm will either toughen you up or you will be straight back home sans boat.
Good luck trip of a life time, not many people get the chance to take thier boat to Paris.