Pembrokeshire is a county of lanes, and a car makes a week of it easier. It is not essential. The railway reaches the main towns. Year-round buses stitch those towns to St Davids and the north. In summer, coastal services built for Coast Path walkers make one-way days possible that a car cannot do as well. The honest bit: Whitesands, many of the coves, and Britain’s smallest city are bus-not-train, and in February some of those buses are not there.
This is the car-free stay. The parking article is the other one.
Arrive by train at Tenby, Pembroke or Haverfordwest. Use Tenby as a day base for the south-east, not as the whole county. Use the T11 for St Davids, the T5 for Fishguard and the north, and the summer Puffin, Strumble and Coastal Cruiser buses for the path. Do not try to do Skomer, St Davids Head and Pembroke Castle on the same day without looking at a timetable first. Frequencies change. Traveline Cymru is the document to trust, not a paragraph in a guide.
The West Wales line runs from Cardiff and Swansea through Carmarthen and then splits. One arm goes to Haverfordwest and Milford Haven. Another goes to Pembroke Dock via Lamphey, Pembroke and, on the south-coast branch, Manorbier, Penally, Tenby, Saundersfoot and Kilgetty. Fishguard Harbour sits on its own spur, timed around the Rosslare ferry as much as around visitors.
Transport for Wales operate it. Through trains from London usually mean a change at Swansea or Cardiff; check National Rail for the day you travel. Our getting here page maps the West Wales line into Tenby, Pembroke and Haverfordwest.
What the railway actually gives you: the market towns, the south-east resort, the castle at Pembroke, the Irish boats. What it does not: St Davids, Whitesands, Broad Haven, the Preselis, Stackpole, or almost any of the Coast Path trailheads people come for. Those are buses, or they are a car.
Tenby station is in the town. Pembroke station is a short walk from the castle. Haverfordwest station is in the middle, with the bus station beside the riverside shops. That last fact is what makes a car-free week possible: you step off a train and onto a bus.
Tenby has its own site on this network. This page only needs the county-level decision: it is the best railhead for a first stay without a car, and it is not the whole of Pembrokeshire.
From the station you can walk the walls, Tenby Castle on Castle Hill, the harbour and the three town beaches. Boats to Caldey leave from the harbour in season — not on Sundays. The Tenby site covers that day.
From Tenby you can also reach Saundersfoot on foot, or on the summer Tenby Coaster open-top (a First Cymru seasonal, not a year-round promise). The 381 runs inland to Kilgetty, Narberth and Haverfordwest. The 349 runs the long way via Pembroke Dock. Manorbier is a train stop as well as a castle above a beach. Folly Farm and Heatherton are a fiddle on public transport — possible, not spontaneous.
Use Tenby for three or four nights. Then move, or take the train to Pembroke and Haverfordwest for the rest. A week in Tenby without ever leaving the south-east is a seaside holiday. It is not a Pembrokeshire holiday.
These are the services that still exist when the summer shuttles have gone.
The T11 (Richards Bros) is the one that matters most to visitors: Haverfordwest to St Davids, also serving Fishguard. It is how you reach Britain’s smallest city without a car. Several a day is the shape; Sundays are thinner. Check. The journey is under an hour from Haverfordwest, and it drops you in the city, not at Whitesands.
The T5 (Richards Bros) is the north-coast spine: Haverfordwest–Fishguard–Cardigan–Aberystwyth. It is not a St Davids bus. It is the way to Newport, the north, and out of the county into Ceredigion.
The 349 (First) links Haverfordwest, Pembroke Dock, Pembroke, Manorbier and Tenby. The 381 links Tenby with Saundersfoot, Kilgetty, Narberth and Haverfordwest. Between them they cover the towns. They do not cover the cliffs.
Fflecsi has replaced several of the old numbered rural services, including the Poppit Rocket (405) between Fishguard and Cardigan. It is a bookable, zoned bus — app or phone, Monday to Saturday, not a timetable you stand at. If you are walking the north coast in winter, that is the tool. Do not assume a rocket that last ran under that name.
Contactless on the ordinary buses is normal. A day ticket can beat a handful of singles. Confirm on the operator.
This is the network that makes a car-free National Park week more than a town-and-train holiday.
In 2026 the Puffin Shuttle (400, Richards Bros) ran St Davids to Marloes via Broad Haven, Little Haven, St Brides and Martin’s Haven — the Skomer boats. The Strumble Shuttle (404) ran St Davids to Fishguard via Abereiddi, Porthgain and Strumble Head. The Coastal Cruiser (387/388, the council) looped the Angle peninsula from Pembroke Dock, including Stackpole, Bosherston and Saint Govan’s Chapel when the range was open. All three ran daily 23 May to 27 September in that year. The Cruiser keeps a thinner winter timetable; the other two do not.
The Celtic Coaster (403) loops the St Davids peninsula — cathedral, Porthclais, St Justinians, Whitesands — and in 2026 went half-hourly in late-May half-term and through July and August. That is the bus that makes Whitesands a car-free beach rather than a two-mile walk with a bag.
Those dates will move. The council coastal-bus page is the live list. Bikes generally cannot go on these buses. Walk one way, ride back. That is what they were designed for. Do not try to out-guess a shuttle in November. The T11 and T5 are the year-round spine.
This is the honest paragraph.
St Davids has no station. Whitesands has no station. Broad Haven has no station. Martin’s Haven has no station. Anyone planning a puffin-and-cathedral week as if it were a Tenby week is going to spend it on the T11 and the Coaster, or they are going to hire a car.
It works. The T11 puts you in Cross Square. Oriel y Parc is the visitor centre and the bus interchange. The Celtic Coaster, in season, does the peninsula. The Puffin does Broad Haven and the Skomer boats. A day on foot from the city — cathedral, St Non’s, Porthclais — needs no bus at all. Our St Davids piece is the rest of that day.
What does not work: a late return from Whitesands after the last Coaster; a Skomer landing that overruns the last Puffin; a February afternoon at Abereiddi with no Strumble Shuttle. Read the last bus before you treat the Head as an encore.
A full Pembrokeshire week lives on the train, Tenby, the T11 and the summer shuttles. A few of the things people come for do not.
The Preselis and Pentre Ifan are thin on buses. Stackpole and Barafundle are on the Coastal Cruiser in season; they are not a winter bus ride. Carew Castle lost its regular numbered service to Fflecsi — bookable, not spontaneous. Folly Farm wants a taxi from the Tenby side, or a family day you have checked the night before.
The days out page is the rest of the map, written for people who mostly drive. This page is only saying you can do the coast path, St Davids, the rail towns and the islands without joining them.
What the car is not for: Tenby Castle, Pembroke Castle from Pembroke station, St Davids cathedral from the T11, Whitesands on the Coaster, a first look at St Bride’s Bay from the Puffin. For those, the car is something you then have to park.
Park once at home.
Day one: train to Tenby, Castle Hill, the walls, the harbour. Day two: train to Pembroke and the castle, perhaps Fflecsi to Carew if you have booked it. Day three: Haverfordwest and the T11 to St Davids. Day four: cathedral, Celtic Coaster to Whitesands and the walk to St Davids Head. Day five: Puffin to Martin’s Haven and Skomer, if you have booked and the Sound allows; Broad Haven if it does not. A Strumble day to Porthgain. A wet day that never leaves Tenby, Pembroke or the cathedral.
What you miss, honestly: the empty north-coast coves after the last bus; a dawn start at Stackpole Quay before the Cruiser; the Golden Road on the Preselis. What you gain: not circling Whitesands at eleven, and the Coast Path used as it was meant to be used — one way, with a bus back.
The when to visit page is the calendar. Summer is when this plan is richest. Winter is when it shrinks to the railway and the T11. That is still a county. It is a smaller one.