It is an essential stop for a day if you just want to tour the city, or two if you want to explore Mount Rigi or Mount Pilatus. Both excursions offers a great view of Lucerne from the summit and a chance to take a boat ride on the Lake Lucerne and a cabin ride up to the mountains.
While in the city, take a relaxing cruise around the lake? You will get fabulous panoramic view of the lovely landscape, the Old Town and the beautiful rolling hills of Switzerland adorned with charming homes and magnificent chateaus.