We are going to be in Lucerne for one week for the Lucerne Festival next week, then onto Lugano. Can someone tell me if it will be worth a day trip to Interlaken and Jungfraujoch from Lucerne. We will have to get back to Lucerne by 18:00 hr, as we have concerts to attend almost every night. Any advice will be greatly appreciated.
We can either go with a tour group if there is such a thing, or rent a car. It looks like about an hour drive.