Yes, the Swiss Travel Pass covers the journey to Grindelwald and provides significant discounts on the surrounding mountain excursions. The pass offers 100% free travel on all national "SBB" trains, including the route from Interlaken to Grindelwald, as well as free use of the local yellow "PostBuses" within the village. However, it is important to understand the "mountain rule" for 2026: while the transport to the village is free, the high-altitude cable cars and mountain railways—such as the flight to Grindelwald-First or the cogwheel train to the Jungfraujoch—are typically not free. Instead, the Swiss Travel Pass provides a 50% discount on most of these mountain lifts (and a 25% discount for the final stretch to the Jungfraujoch). This makes the pass an excellent value for those staying in Grindelwald, as it covers the expensive "base" travel for free while substantially lowering the cost of reaching the "Top of Europe" and other panoramic viewpoints, though a separate "Jungfrau Travel Pass" might be more economical if you plan on doing multiple mountain peaks in a single weekend.