Hello,
We are traveling with our children in August and will be staying with relatives near interlaken. We will be renting a car. Is is reasonable to do a day trip to Broc to see the Cailler factory, visit the town of Gruyeres and possibly the chateau de Chillon as a day trip?
Also, the Rick steves Switzerland book says there are no reservations taken at the Cailler factory but it looks like you can make them on the website. We want to make the most of our time and not wait the up to 3 hours it says in the book. Thanks for your help!!