Last reviewed: · Prices in British Pounds Sterling (£ GBP) and US Dollars ($ USD) are approximate and for orientation only.
Route at a glance
Experience Wales from south to north: Cardiff Castle and St Fagans, colorful Tenby and St Davids Cathedral in Pembrokeshire, Portmeirion, Yr Wyddfa (Snowdon), and UNESCO Conwy & Caernarfon Castles.
Estimated Trip Budget: £980–£1,720 per person · Primary Transport: Great Western Railway / Transport for Wales + Welsh Coastal & Mountain Drive
Day-by-day plan
Cardiff Castle, Victorian Arcades & Cardiff Bay (Cardiff)
Arrive at Cardiff Central (1h 50m from London Paddington). Tour Cardiff Castle's Gothic Revival apartments, browse the Victorian shopping arcades for hot Welsh cakes, and walk Cardiff Bay.
St Fagans National Museum & Tenby Pastel Harbour (Cardiff → Pembrokeshire)
Spend the morning at the free St Fagans open-air museum outside Cardiff, then head west to the walled seaside town of Tenby in Pembrokeshire Coast National Park.
St Davids Cathedral (Britain's Smallest City) & Coast Path (Pembrokeshire)
Explore 12th-century purple-sandstone St Davids Cathedral, hike a dramatic cliff section of the Pembrokeshire Coast Path to Whitesands Bay, and take a Ramsey Island wildlife boat.
Cardigan Bay, Harlech Castle & Italianate Portmeirion Village (Pembrokeshire → Portmeirion → Betws-y-Coed)
Drive north along Cardigan Bay past UNESCO Harlech Castle to explore Clough Williams-Ellis's whimsical coastal village of Portmeirion, continuing into Eryri (Snowdonia).
Yr Wyddfa (Snowdon) Summit Railway or Miners' Track & Beddgelert (Eryri (Snowdonia))
Ascend 1,085m Yr Wyddfa via the 1896 Snowdon Mountain Railway from Llanberis or hike the Miners'/Pyg Track, followed by an afternoon in stone-built Beddgelert.
Caernarfon Castle, Anglesey & Walled Conwy (Conwy & Caernarfon)
Tour polygonal-towered Caernarfon Castle, cross Thomas Telford's Menai Bridge to Anglesey, and walk the medieval town walls and suspension bridge of Conwy.
Llandudno Victorian Pier & Direct Avanti Train to London Euston (Conwy → Chester / London)
Morning walk on Llandudno's Great Orme headland before boarding the direct Avanti West Coast train from Llandudno Junction back to Chester (45 min) or London Euston (2h 55m).
Transport & National Rail notes
Great Western Railway / Transport for Wales + Welsh Coastal & Mountain Drive. Book National Rail Advance tickets 8–12 weeks ahead on LNER, GWR, Avanti West Coast, or ScotRail, or use a £35 Two Together / 16–30 Railcard (33.4% off Off-Peak fares) or BritRail Pass.
What to book ahead
- UK ETA (Electronic Travel Authorisation, £16) via the official UK ETA app at least 72 hours before departure.
- Timed morning tickets for the Tower of London (£34.80), Edinburgh Castle (£19.50), Roman Baths (£25+), and Warner Bros. Harry Potter Studio Tour.
- National Rail Advance tickets or Caledonian Sleeper / Jacobite Steam Train seats 8–12 weeks in advance.
Ways to adapt this route
- Add 2 days in the Cotswolds (Bourton-on-the-Water & Bibury) or a day-trip to Windsor Castle (35 min from London).
- Combine Edinburgh with a 2-day ScotRail loop to St Andrews or Inverness & Loch Ness.