On a Saturday, June 10, we intend to do a day trip from Paris to Reims for several champagne tours. Piper-Heidsieck seems popular. Would Le Foch be open for lunch? Would it be possible to walk to Le Foch between tours...assuming I am able? Reservations? Would casual wear be acceptable? My muenu French can't decipher their web info.

Foch isn't open for lunch on Saturdays.

Rats...thanks Alec.
Early Saturday dinner then train back to Paris...it would be late. When would Foch open for dinner and how long would be reasonable?

Most French restaurants don't open till 7 pm for dinner. Official website doesn't give opening hours. You must book in advance. No dress code as such, but most diners will be smart/casual. No jacket and tie needed for men.

Thanks again Alex, I guess I'm having dinner in Paris...not such a bad deal!
However, I'm still looking for a nice Saturday lunch in Reims...? Any ideas anyone.