Practically all the major Champagne labels offer tours; the Office de Tourisme (beside the cathedral, at 2 Rue Guil?­laume de Machault) is the best source of information on hours and prices.
The Office de Tourisme opens at 7:00 a.m.
mnli hypothesis: The Office de Tourisme opens at 7:00 a.m. premise: Practically all the major Champagne labels offer tours; the Office de Tourisme (beside the cathedral, at 2 Rue Guil?­laume de Machault) is the best source of information on hours and prices.