Bus
Driving
Barmouth to Caernarfon
Updated: 30 May 2026
The journey from Barmouth to Caernarfon is approximately 60 km, taking you through the dramatic landscapes of Snowdonia. Driving via the A487 is the most efficient method, taking about 1 hour and 15 minutes. This route is famous for its mountain passes and proximity to Mount Snowdon. Caernarfon is home to one of the most famous castles in the world, making it a top destination for history enthusiasts. Public transport is available but requires multiple connections.
Total Distance: 60 km driving, 45 km air distance.
Fastest Way
Driving, taking 1 hour 15 minutes.
Cheapest Way
Bus, costing around £10.
Compare Barmouth to Caernarfon Routes
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Connecting
|
Direct
|
|
|---|---|---|
| Duration | 2 hours | 1 hour 15 mins |
| Avg Price | £10 - £15 | £12 - £16 fuel |
| Operator | TrawsCymru | N/A |
| Route | Bus from Barmouth to Porthmadog, then transfer to Caernarfon. | A487 north through Porthmadog and Penygroes. |
| Tip | Check the TrawsCymru website for current bus schedules. | The A487 is a well-maintained road but can be busy during peak tourist season. |
Travel Tips
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ParkingUse the main car parks near the castle for easy access to the town centre.
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TrafficPorthmadog can get very congested; allow extra time if driving.
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BookingBook train tickets for the Welsh Highland Railway well in advance.
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FootwearWear comfortable walking shoes for exploring the castle grounds.
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LanguageCaernarfon is a Welsh-speaking stronghold; learning a few phrases is appreciated.
Safety Tips
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DrivingThe A487 has many speed cameras; keep to the limit.
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WeatherMountain weather can change quickly; bring layers.
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CrowdsThe castle can be very busy; visit early in the morning.
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EmergencyCaernarfon has a local hospital with an A&E department.
People Also Ask
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Is Caernarfon Castle worth visiting?Yes, it is one of the most impressive castles in the UK.
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How long is the drive?The drive takes about 1 hour and 15 minutes.
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Are there trains to Caernarfon?No, the main rail network does not reach Caernarfon; use bus or car.
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Is it a good base for Snowdonia?Yes, it is very close to the northern part of the national park.
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What is the best time to visit?May or September offer the best balance of weather and crowds.
Quick Info
- From Barmouth, Wales, United Kingdom
- To Caernarfon, Gwynedd, United Kingdom
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Modes
Best Time to Travel
Late spring to early autumn for the best driving conditions.
Things to Do in Caernarfon
1
Caernarfon Castle
Explore this UNESCO World Heritage site, a massive fortress built by Edward I.
2
Welsh Highland Railway
Take a scenic steam train journey from Caernarfon into the heart of Snowdonia.
3
Segontium Roman Fort
Visit the remains of this ancient Roman fort located on the outskirts of the town.
4
Caernarfon Waterfront
Walk along the harbour and enjoy views of the Menai Strait.
Tags
Barmouth to Caernarfon
driving to Caernarfon
Caernarfon Castle
Snowdonia travel
Barmouth transport
North Wales routes
A487 road
Caernarfon bus
