Riding the rails around Europe is not only a rite of passage for young travelers, it’s also a solid way for everyone to get around most of the continent while keeping their carbon footprint in check. The only problem with rail travel in Europe is that last-minute bookings can be expensive, especially for high-speed trains.
Unless you book your travels with OUIGO, the low-cost branch of the SNCF, the state-owned railroad system of France.