We are planning a fall trip from U.S. to Paris. The plan is 3 days Paris, 3 days London, then back to Paris for 2-3 days. (We are using frequent flyer miles and want to fly in and out of one country). We plan to use the Eurostar/Chunnel for the Paris/London/Paris part of the trip.
What is the easiest way to book the Paris-London-Paris on the chunnel? Is there a website?
How far in advance for reservations?
Are the starting points Gare du Nord (Paris) and Waterloo (London)?
Thanks for the help