Switzerland is fully integrated into the Eurail Pass system, making it one of the most rewarding countries to explore using a rail pass. A standard Eurail Global Pass covers almost all "National" trains operated by SBB (Swiss Federal Railways), allowing for unlimited travel between major cities like Zurich, Geneva, Bern, and Lucerne. It also covers several private railway lines and the famous "S-Bahn" commuter trains in urban areas. However, Switzerland’s unique mountain geography means that many of its most famous scenic excursions, such as the Jungfrau Railway to the "Top of Europe," are only partially covered. On these private mountain cogwheel trains, a Eurail Pass typically provides a 25% to 50% discount rather than a fully free ride. Iconic panoramic trains like the Glacier Express and the Bernina Express are included in the pass, but they require a mandatory seat reservation fee that must be paid separately. Additionally, the Eurail Pass offers "bonus" benefits in Switzerland, such as free travel on several lake steamers (like those on Lake Brienz or Lake Thun), making it an exceptionally versatile tool for navigating the country's stunning alpine landscapes and efficient transit network.