A day trip to Interlaken from Lucerne offers a scenic journey through central Switzerland, taking around 2 hours by train. Nestled between Lake Thun and Lake Brienz, Interlaken is known for its stunning Alpine views and outdoor activities like paragliding and boat rides. Visitors can explore the town’s charming streets, enjoy Swiss cuisine, or take the Harder Kulm funicular for panoramic views of the Jungfrau region.