Pat,
     Two real highlights of La Rochelle. 1. The regional market on Wednesdays & Saturdays. In the market square there a wine merchant called Jean Marie Floret who officially stocks the new Amels with  complementary wine, he only delivers at high tide so that he has a horizontal walkway to your boat! 2. As an existing Amel owner , then, the guided tour of the factory an experience you will never forget.
Have a great trip.
Best regards,
Trevor Lusty
Ireland