We are traveling to France for three weeks in September. We have a hotel reservation for two nights in Paris, one night in Lyon, then renting a house with 4 friends for a week, a canal boat for a week, two nights in Sete, and one night in Marseille. Do we need to provide documents for all of these stays/reservations when we arrive at CDG?
No
Just need your passport
Thank you, my thoughts also. One of our traveling companions see this list and is worried
A valid passport issued less than 10 years before and valid for at least 3 months after the envisaged departure date;
A valid visa, if required;
Proof of accommodation covering the whole duration of the stay (hotel reservation and/or certificate of staying with a relative validated in the town hall);
Sufficient financial means. The means of subsistence shall be assessed according to the duration and purpose of the stay and by reference to the average prices for accommodation and food in the Member States;
Your return ticket or the financial means to acquire one at the envisaged return date;
Any document providing details on the profession or the capacity of the traveller as well as on the establishments or organisations located in France which are expecting you, if you are on a professional trip.
You must have an insurance certificate covering all medical and hospital expenses for which you may be liable for the duration of your stay in France, as well as medical repatriation costs and expenses in the event of death.
Are all of you traveling on US passports?
These measures are primarily intended to prevent illegal immigration. Unless you appear suspicious to an immigration officer, you will only be asked for your passport (and your visa if this applies to your situation).
Imagine having to check, read, and understand the insurance certificate and calculate the means of subsistence for the duration of the stay provided by the 100 million visitors from dozens of countries who come to France each year.
Although it's highly unlikely that you'll be asked to provide documentation for even one of those items, let alone all of them, it's actually wise to have all of that, most notably the health insurance. And it can't hurt for at least one member of your party to have all the various accommodation reservations in one place, whether printed out or electronic.
Yes, all US passports
If you say you are on vacation and can show a return plane ticket, that is likely all that would matter if questioned