Rail Europe is partnering with Switzerland Tourism to offer savings on Swiss travel. The First Class Swiss Pass Special, Discounted First Class Swiss Pass and Extra Bonuses is good through May 10 for travelers who book a consecutive 15-day Swiss Pass. They will receive a first class pass for the price of a second class pass when they enter the promotion code SWISS15.

As an added bonus, travelers also receive a complementary coupon offering roundtrip travel on the Stanserhorn mountain, via funicular train and a ride up to the peak on the world’s first open-top, double-decker cable car, CabriO. The price for the consecutive 15-day Swiss Pass is $507 per person, and savings can be as much as $300, while this offer lasts. Travel is valid for six months from the date of purchase. Bookings can be made by visiting Rail Europe’s agent website or by calling Rail Europe’s Contact Center or by visiting MySwitzerland.com.

The Swiss Pass provides extensive travel on all trains, boats and postal buses throughout the Swiss Travel System. As an added bonus, children under 16 ride free, and all Swiss Pass holders receive free access to more than 400 museums in Switzerland. The offer is limited to the first 125 eligible passes or the promotion’s end date of 11:59 p.m. ET on May 10, whichever comes first.