Route · 4 days
Eryri on Superchargers Alone
Two Superchargers hold the whole of North Wales between them, and this loop threads castles, passes and the Llŷn on nothing else.
Updated 3 Aug 2026 · Not driven yet
Your car, your numbers
Range is what your car honestly does on a full charge, not the brochure number (a used Model Y is ~260). The ~15% overnight draw comes from our own cold-morning testing; drop it if you run Camp Mode warm-weather lean. Every stop below recalculates as you type, and your numbers are remembered for other routes. Estimates assume steady A-road driving. If the maths goes red on a remote route, that's not a bug: it's the route showing you where to charge.
STEP ZERO · YOUR DRIVE THERE
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Day-by-day itinerary
DAY 1The A55 in, the Ogwen Valley up
Supercharger
Flint Mountain Supercharger
Flint Mountain Park Hotel, Northop Road, Flint Mountain, Flint, CH6 5QG
Eight stalls behind the Flint Mountain Park Hotel, two minutes off the A55. Coffee in the hotel while it fills.
Charge to 100%. The next Supercharger is Anglesey, two Camp Mode nights and 120 miles of mountain road away.
SET OFF100%drive 34 miles
Photo: Nilfanion · CC BY-SA 4.0 · Wikimedia Commons Highlight11:00 AM
Conwy Castle
Climb the towers, then walk the town walls: three quarters of a mile of them, and most people never bother.
ARRIVE87%drive 21 miles
Photo: Llywelyn2000 · CC BY-SA 4.0 · Wikimedia Commons Highlight2:30 PM
Cwm Idwal
Park at Ogwen Cottage and walk the hour's loop to Llyn Idwal under Tryfan. The car park fills by ten in summer; mid afternoon it breathes again.
ARRIVE79%drive 3 miles
Campsite
Gwern Gof Isaf Campsite
Gwern Gof Isaf, Capel Curig, Betws-y-Coed, Conwy, LL24 0EU
A farm field under Tryfan that has hosted climbers for a century. First night on Camp Mode with 78% in the pack.
ARRIVE78%WAKE63%⚡ 26 min to Supercharger ↗£22–25/night est. · Anglesey (Gaerwen)
DAY 2Two passes, Portmeirion and out along the Llŷn
drive 8 miles
Photo: Takver · CC BY-SA 2.0 · Wikimedia Commons Highlight9:30 AM
Llanberis Pass
Pull in at Pen y Pass for the view down the boulder-strewn defile. The car park is pre-book only in summer; the lay-bys below Pont y Gromlech are free if you are early.
ARRIVE60%drive 8 miles
Photo: Chris Morgan · CC BY-SA 2.0 · Wikimedia Commons Highlight
Beddgelert
The A498 down Nant Gwynant is the best view of Yr Wyddfa you can get from a driver's seat. Regen does the braking. Ice cream by the bridge at the bottom.
ARRIVE57%drive 11 miles
Photo: Mike McBey · CC BY 2.0 · Wikimedia Commons Highlight12:30 PM
Portmeirion
Clough Williams-Ellis's Italian village on a Welsh estuary. Entry is ticketed and worth it; the piazza empties once the day trippers drift off.
ARRIVE52%drive 21 miles
Photo: Bill Harrison · CC BY-SA 2.0 · Wikimedia Commons Highlight
Llanbedrog Beach
Candy-striped beach huts below a wooded headland, National Trust car park behind. The gentlest swimming water on the peninsula.
ARRIVE44%drive 10 miles
Photo: Dominic Nelson · CC BY-SA 4.0 · Wikimedia Commons Highlight
Porthdinllaen
Park at Morfa Nefyn and walk the sand to the Ty Coch Inn, a pub with the beach for a beer garden. No road in, which is the whole point.
ARRIVE40%drive 11 miles
Campsite
Aberafon Campsite
Aberafon, Gyrn Goch, Caernarfon, Gwynedd, LL54 5PN
A field that tips down to its own beach under Yr Eifl. Sunset over the Irish Sea through the windscreen, 36% in the pack and a plan for the morning.
ARRIVE36%WAKE21%⚡ 31 min to Supercharger · charge first ↗£28–30/night est. · Anglesey (Gaerwen)
DAY 3Caernarfon, then the island
drive 11 miles
Photo: Herbert Ortner · CC BY 4.0 · Wikimedia Commons Highlight9:30 AM
Caernarfon Castle
The biggest and bleakest of Edward's castles. We rolled in on 17% and had breakfast on the quay below the Eagle Tower, entirely calm about it. Mostly.
ARRIVE17%drive 12 miles
Supercharger
Anglesey Supercharger
M-SParc, Menai Science Park, Gaerwen, Anglesey, LL60 6AG
Twelve V4 stalls at M-SParc, the science park outside Gaerwen. Opened May 2025, and it is the single reason this route exists.
Charge to 90%. The midday charge, Idea 03 in action, and your lowest moment of the trip: we arrived on 13%.
ARRIVE12%LEAVE90%drive 21 miles
Photo: Denis Egan · CC BY 2.0 · Wikimedia Commons Highlight3:00 PM
South Stack
Four hundred steps down to the lighthouse on its islet. In early summer the RSPB scopes at Ellin's Tower are trained on puffins.
ARRIVE82%drive 25 miles
Campsite
Tyddyn Isaf Caravan Park
Tyddyn Isaf Caravan Park, Lligwy Bay, Dulas, Anglesey, LL70 9PQ
The posh night. Five stars, a private path down to Lligwy beach, and fresh bread from the site shop in the morning.
ARRIVE72%WAKE57%⚡ 29 min to Supercharger ↗£46–52/night est. · Anglesey (Gaerwen)
DAY 4Beaumaris and the run home
drive 14 miles
Photo: Mike Peel · CC BY-SA 4.0 · Wikimedia Commons Highlight10:00 AM
Beaumaris Castle
The prettiest moat in Wales and a view across the Menai Strait to every mountain you have just driven.
ARRIVE52%drive 59 miles
Supercharger
Flint Mountain Supercharger
Flint Mountain Park Hotel, Northop Road, Flint Mountain, Flint, CH6 5QG
Back where we started, 270 miles and three Camp Mode nights later, having paid for exactly two charges in four days.
Charge to 80% for the road home. You arrive on about 29%, then it's just the A55 and a sandwich.
ARRIVE29%LEAVE80%
Frunk & FieldNotes
Not driven yet
We haven't driven this one yet. Nobody has slept on this route with our name on it. Notes, photos and hard-won guidance land here after the first trip.
ROUTE CHANGELOG
Driven it before? This is what has changed since.
- 3 Aug 2026
First published.
Drive it on the three ideas: arrive at camp with 30%+, charge to 90% before any dead zone, and charge midday, never evenings.