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What to See in Snowdonia (Eryri): Snowdon, Castles and Itinerary

What to See in Snowdonia (Eryri): Snowdon, Castles and Itinerary

November 2026
◷ 3-minute read

Mountains, glacial lakes, medieval castles and stone villages: the national park of Snowdonia, today officially called Eryri, Snowdonia is the jewel of North Wales. Here's what to see in Snowdonia, how to climb Snowdon, and our recommended itinerary. Based in the UK since 2012, we organize tailor-made trips to Wales.

In short: In Snowdonia (Eryri), don't miss the ascent of Snowdon (Yr Wyddfa, 1,085 m), either on foot or by cog railway from Llanberis, the village of Betws-y-Coed and Swallow Falls, the UNESCO-listed castles of Conwy and Caernarfon, and the Italian village of Portmeirion. Allow 3 to 4 days there, traveling by car.

Want to discover Snowdonia? Our local French-speaking team designs your tailor-made trip to Wales.

Snowdonia or Eryri: which name to use?

Snowdonia National Park now primarily uses its Welsh name, Eryri, while Snowdon mountain is known as Yr Wyddfa. Both names, however, remain widely used, particularly by travelers.

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What to see in Snowdonia: the must-sees

Climbing Snowdon (Yr Wyddfa)

At 1,085 meters, Snowdon is the highest peak in Wales. Several trails lead to the summit, such as the Llanberis Path, the most gradual, or the more challenging Pyg Track. Allow 5 to 7 hours for the round trip. Alternatively, the Snowdon Mountain Railway, a cogwheel train, departs from Llanberis, seasonally and depending on the weather.

The mountains of the national park, one of the must-see attractions in Snowdonia
The landscapes of Snowdonia National Park (Eryri).

Betws-y-Coed and the Swallow Falls

The gateway to the park, the village of Betws-y-Coed, charms visitors with its stone houses, bridges, and forests. Just a few minutes away, Swallow Falls is one of the most famous waterfalls in the country.

Conwy and Caernarfon Castles

Built by King Edward I at the end of the 13th century, Conwy and Caernarfon castles form part of a UNESCO World Heritage Site. Their walls and towers are among the best preserved in Europe.

Portmeirion, the Italian village

On the coast, Portmeirion surprises with its colorful Italian-style houses, designed by the architect Clough Williams-Ellis in the 20th century.

For thrill-seekers

In addition, the region offers many activities: giant zip lines in old slate quarries, kayaking on the lakes or mountain biking in the forest.

Our 4-day Snowdonia itinerary

  • Day 1: Conwy and its castle.
  • Day 2: Ascent of Snowdon from Llanberis, on foot or by train.
  • Day 3: Betws-y-Coed and the Swallow Falls.
  • Day 4: Caernarfon and Portmeirion.

For a turnkey trip, discover our tour Castles, legends and landscapes of North Wales and our guide What to see in Wales. More information is available on the official website. Visit Wales.

Also read: What to do in Cardiff

Frequently Asked Questions about Snowdonia

Is Snowdon difficult to climb?

The Llanberis Path is accessible to hikers in good physical condition, without any technical difficulties. However, the weather changes quickly in the mountains: be sure to bring warm and waterproof clothing.

What is the best time to visit Snowdonia?

From May to September, the trails and the Snowdon train operate best. In spring and autumn, there are also fewer people.

How to get to Snowdonia from London?

Allow approximately 4 to 5 hours by road, or by train to Bangor or Betws-y-Coed. However, a car remains essential for exploring the park.

In summary

  • Not to be missed: Snowdon (Yr Wyddfa), Betws-y-Coed, Conwy, Caernarfon, Portmeirion.
  • Ascent: 5 to 7 hours on foot, or by cog railway from Llanberis.
  • Recommended duration: 3 to 4 days, by car.
  • Best time to go: from May to September.
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Written by our local experts

This guide is written and updated by the team at Brightside Travel, a bespoke travel agency based in Edinburgh since 2012 and Travelife certified for responsible tourism. Our experts live in the UK and design trips to Scotland, England, Wales, and Ireland every day. Meet our team.

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Written by Anthony Cote, from the Brightside Travel team, a bespoke travel agency based in Edinburgh since 2012.

Updated on · Discover our experts

Updated on November 10, 2026
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