The Snowdon Mountain Railway is the UK's only public rack-and-pinion railway and one of the most thrilling and scenic journeys in Britain, climbing 4.7 miles from the village of Llanberis to the 1,085-metre summit of Yr Wyddfa — Snowdon — the highest mountain in Wales and England. Opened in 1896 and celebrating its 130th anniversary in 2026, the railway still operates a mixture of heritage steam and modern diesel trains, with the Heritage Steam Experience running on selected dates from May to October. At the summit, the award-winning Hafod Eryri visitor centre offers stunning 360-degree views across Snowdonia National Park, the Irish Sea, and on clear days, as far as Ireland and the Isle of Man. Services are subject to weather conditions; advance booking is essential during the busy summer season when tickets frequently sell out.