Three ways in
However you arrive, the last
few miles are the best
The Cambrian Coast railway and the A487 both trace the same line down the coast — mountains on one side, Cardigan Bay on the other, for the whole final stretch.
Tywyn has its own station, right in town, on the Cambrian Coast Line. Trains run roughly every two hours and connect directly to Birmingham International and Birmingham New Street via Shrewsbury — no changes needed for most of the journey.
The route itself is one of the great unsung scenic railways of Britain: after Shrewsbury the line follows the Dyfi estuary through Machynlleth before turning to hug the coast, with the sea in view for the last half hour into Tywyn.
Most journeys from England come in via the A5 and A470/A487 through Snowdonia (Eryri) National Park, or along the A44/A487 through mid-Wales via Machynlleth. Both routes are genuinely beautiful — this isn't a motorway slog, it's part of the holiday.
From Machynlleth, the final 18 miles follow the Dyfi estuary and then the coast road through Aberdyfi, with the sea on your left the whole way into Tywyn.
There's no airport in Tywyn itself, but Mid-Wales sits within reach of several regional airports for guests flying in — Liverpool John Lennon and Manchester are both around 2–2.5 hours' drive, while Birmingham connects onward by direct train if you'd rather not hire a car.
Most guests flying in hire a car at the airport — the drive itself, especially from Liverpool or Manchester through Eryri, is worth building into the holiday rather than rushing.