What is the difference between the four guided e-bike tours in Interlaken?

The four tours mainly differ in duration, distance and difficulty. The Scenic E-Bike Tour (2.5 hrs, CHF 119) is the easiest option and runs year-round with three daily departures. The Waterfalls Tour (6 hrs, CHF 199) is a 28 km loop into the Lauterbrunnen Valley with a picnic included, available April to October. The Lauterbrunnen & Isenfluh Tour (5 hrs, CHF 219) is the most demanding, with at least 300 metres of climbing and technical descents, running May to October. The Private Tour (from CHF 714 per group) is fully flexible in route, duration and pace.