At a glance
The UK's only rack-and-pinion mountain railway — 4.7 miles from Llanberis to the 1,085 m summit of Snowdon in approximately 60 minutes. Operating since 1896, this is the easiest and most accessible way to reach the highest summit in England and Wales. Adult return from £45, book ahead.
About the Snowdon Mountain Railway
The Snowdon Mountain Railway — Rheilffordd yr Wyddfa — opened in April 1896 and has carried passengers to the summit of Snowdon (Yr Wyddfa) ever since. It is the only public rack-and-pinion railway in the United Kingdom, using a central toothed rack rail between the running rails to grip the steep gradients that reach 1 in 5.5 on the upper sections of the 4.7-mile route.
The railway climbs from Llanberis station at approximately 100 m above sea level to the summit station at 1,085 m — a vertical rise of nearly 1,000 m. The journey passes through spectacularly varied mountain scenery: from the lower wooded slopes above Llanberis, through open moorland and alongside the Llanberis Path walking route, to the summit plateau with its panoramic views over North Wales, the Irish Sea and on clear days as far as Ireland.
The railway originally operated exclusively with steam locomotives — and still runs steam engines on many services, a major attraction in itself. More recently, modern diesel and battery-electric locomotives have been added to the fleet, extending operating capacity. The Hafod Eryri summit visitor centre (opened 2009) provides a café, toilets and interpretation about the mountain's geology, ecology and human history.
Planning your journey
Booking tickets
Book online at rheilfforddyrwyddfa.co.uk — summer morning departures sell out weeks in advance. A standard return ticket takes you to the summit and back. A one-way descent ticket suits those walking up on one of the six paths and taking the train back down.
What to wear
Even if the valley is warm and sunny, the summit is typically 5–8°C colder and often windy. Bring a warm layer, a windproof jacket and suitable footwear for stepping outside at the summit. In summer shorts and a thin jacket regularly prove insufficient on the 1,085 m summit plateau.
Combining with a walk
A popular combination is to take the train up and walk one of the paths down — or vice versa. The Llanberis Path runs directly alongside the railway and is the easiest walking descent from the summit back to Llanberis (about 2 hours down). This requires a one-way train ticket and one-way descent walk back to the same starting point.
Find it on the map
Frequently asked questions
At 2026 rates: adult summit return from £45 off-peak (about £48 peak) on the diesel service, or £62 on the heritage steam service; child (3–15) return from £27. The season runs from late March to late October. A "summit and back" return ticket is the standard option. A one-way descent ticket is available for those walking up and taking the train down. Booking online at rheilfforddyrwyddfa.co.uk is strongly recommended for summer visits — popular departures sell out weeks in advance.
The journey from Llanberis to the summit takes approximately 60 minutes each way. Passengers have about 30 minutes at the summit station before boarding the return train. Total round trip time is approximately 2.5 hours including summit time. Departures are scheduled throughout the day from approximately 09:00.
No. The railway operates seasonally, typically from March to November. It does not run in winter (December–February). Services can be suspended at short notice due to high winds, ice or severe weather — the summit experiences some of the most extreme weather in Wales. Check the railway website on the morning of your visit.
A rack-and-pinion system uses a central toothed rail (the rack) between the running rails. Cogs on the locomotive engage with this rack to prevent slipping on steep gradients — the Snowdon Railway reaches gradients of up to 1 in 5.5. This makes it fundamentally different from normal adhesion railways and is why it can climb gradients impossible for conventional trains.
Yes — especially for July and August visits. The railway has limited capacity and popular morning departures can sell out weeks ahead in peak season. Book online at rheilfforddyrwyddfa.co.uk. Even in shoulder season (May–June, September–October), booking 1–2 days ahead is advisable for your preferred departure time.
Excellent for families with young children — the railway makes the 1,085 m summit accessible to all ages without walking. Children under 3 travel free. The Hafod Eryri summit café and visitor centre provides warmth and facilities. On clear days the views are extraordinary. Dress children in warm layers regardless of valley weather — the summit is typically 5–8°C colder.