Snowdonia and the 3 Castles Tour
Three iconic castles, a national park, and the charm of North Wales — all in one unforgettable day.
The Snowdonia and 3 Castles Tour takes you through some of the most layered and historically rich landscapes in Britain, weaving together medieval fortresses, glacial valleys, and slate-quarrying heritage into a single well-paced day.
Beginning along the Great Orme coastal road — reputedly the longest one-way road in Great Britain — the tour makes its way to Conwy, where ancient walls still encircle a market town that has changed little in plan since the 13th century. From there, the route cuts deep into Snowdonia National Park, tracing passes and lake shores that define the character of North Wales.
The day concludes at Caernarfon, a World Heritage Site whose sheer scale and state of preservation continue to impress. Between the three castles, the National Slate Museum, and the viewpoints above Llyn Padarn, this is a tour that rewards curiosity at every stop.
Tour Highlights
Walk the medieval walls of Conwy Castle and explore one of Edward I's most complete fortresses.
Step inside Britain's Smallest House, a red-fronted curiosity on the Conwy quayside where a 6-foot-3 fisherman once lived.
Travel through the Nant Ffrancon and Nant Gwynant passes, pausing beside glacial lakes including Llyn Ogwen and Llyn Padarn.
Reach the Pen y Pass viewpoint for a panoramic outlook across the Snowdon massif and the surrounding mountain ranges.
Discover the National Slate Museum at Llanberis, where preserved workshops and live demonstrations bring quarry life to light.
Visit Dolbadarn Castle, built by Llywelyn the Great and set above Llyn Padarn in the heart of Gwynedd.
Explore Caernarfon Castle, a UNESCO World Heritage Site and the most powerful of Edward I's Welsh fortresses.
Itinerary
The day begins at Llandudno Pier before the group travels the Great Orme coastal circuit, keeping watch for the resident Kashmir goats that famously colonised the town during lockdown. The road offers sweeping views across the Irish Sea and the Conwy estuary.
Conwy delivers a full immersion in medieval Wales: the castle, the intact town walls, and the narrow streets of the old borough. Time is set aside to visit the marina area for refreshments and to take in the estuary frontage.
Tucked against the castle walls on the quayside, this red-painted building measures just a few feet across. A local fisherman of considerable height reportedly made it his home well into the 20th century.
The route enters the national park through the Nant Ffrancon pass and continues via Capel Curig, Llyn Mymbyr, and the Nant Gwynant pass. Stops are made at lake viewpoints and the Pen y Pass summit area for mountain perspectives.
At Llanberis, the National Slate Museum occupies the original Dinorwig quarry workshops, preserved as they were when the quarrymen left. Nearby, Dolbadarn Castle stands on a promontory above Llyn Padarn, its round tower a rare survivor of native Welsh construction.
The tour closes at Caernarfon, where the castle's polygonal towers and banded stonework dominate the mouth of the River Seiont. The walled town and the redeveloped Menai waterfront provide an atmospheric setting for the final hours of the day.
What's Included
Included
- Guided day tour by road vehicle
- Commentary throughout the journey
- Great Orme coastal road circuit
- Stops at Conwy, Snowdonia National Park, Llanberis, and Caernarfon
- Visit to Britain's Smallest House (exterior and entry)
- Access to National Slate Museum grounds
Not Included
- Castle admission fees
- National Slate Museum paid entry
- Meals and refreshments
- Personal travel insurance
- Gratuities
Important Information
Reserve Your Place
Spaces on this tour are limited. Secure your seat to explore three of Wales's finest castles alongside the lakes and passes of Snowdonia National Park.
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