S4 Gwastadnant to Morfa Bychan via Beddgelert, Porthmadog
Operated by Gwynfor Coaches. Registered as running via Porthmadog, Tremadog, Prenteg, Beddgelert, Pen Y Pass. First bus 07:20, last bus 18:42. 45 journeys on weekdays. Fares: set by the operator — more.
Wanted a different S4? 7 other bus routes are numbered S4 elsewhere in the UK — see every S4 bus timetable by area.
| Stop | 08:00 | 08:00 | 09:00 | 09:30 | 10:00 | 09:32 | 11:00 | 12:00 | 11:32 | 13:00 | 13:30 | 14:00 | 13:32 | 15:00 | 15:30 | 16:00 | 15:32 | 17:00 | 17:00 | 18:00 | 18:30 | 18:32 to Porthmadog |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pen-y-pass YHA | · | · | · | · | · | 09:32 | · | · | 11:32 | · | · | · | 13:32 | · | · | · | 15:32 | · | · | · | · | 18:32 |
| Bryn Gwynant (before) | · | · | · | · | · | 09:43 | · | · | 11:43 | · | · | · | 13:43 | · | · | · | 15:43 | · | · | · | · | 18:43 |
| Beddgelert A (at) | · | 08:00 | · | · | · | 10:00 | · | · | 12:00 | · | · | · | 14:00 | · | · | · | 16:00 | · | 17:00 | · | · | 19:00 |
| Pont Aberglaslyn (before) | · | 08:04 | · | · | · | 10:04 | · | · | 12:04 | · | · | · | 14:04 | · | · | · | 16:04 | · | 17:04 | · | · | 19:04 |
| Brondanw Arms (opp) | · | 08:12 | · | · | · | 10:12 | · | · | 12:12 | · | · | · | 14:12 | · | · | · | 16:12 | · | 17:12 | · | · | 19:12 |
| Pont Croesor (after) | · | 08:14 | · | · | · | 10:14 | · | · | 12:14 | · | · | · | 14:14 | · | · | · | 16:14 | · | 17:14 | · | · | 19:14 |
| Tan y Bryn (opp) | · | 08:16 | · | · | · | 10:16 | · | · | 12:16 | · | · | · | 14:16 | · | · | · | 16:16 | · | 17:16 | · | · | 19:16 |
| Market Square (after) | · | 08:19 | · | · | · | 10:19 | · | · | 12:19 | · | · | · | 14:19 | · | · | · | 16:19 | · | 17:19 | · | · | 19:19 |
| Porthmadog Park Stand C (at) | 08:00 | 08:30 | 09:00 | 09:30 | 10:00 | 10:30 | 11:00 | 12:00 | 12:30 | 13:00 | 13:30 | 14:00 | 14:30 | 15:00 | 15:30 | 16:00 | 16:30 | 17:00 | 17:30 | 18:00 | 18:30 | 19:27 |
| Village Square (at) | · | 08:34 | · | 09:34 | · | 10:34 | · | · | 12:34 | · | 13:34 | · | 14:34 | · | 15:34 | · | 16:34 | · | 17:34 | · | 18:34 | · |
| Greenacres (in) | 08:07 | 08:40 | 09:07 | 09:40 | 10:07 | 10:40 | 11:07 | 12:07 | 12:40 | 13:07 | 13:40 | 14:07 | 14:40 | 15:07 | 15:40 | 16:07 | 16:40 | 17:07 | 17:40 | 18:07 | 18:40 | · |
| Black Rock Sands | 08:10 | 08:43 | 09:10 | 09:43 | 10:10 | 10:43 | 11:10 | 12:10 | 12:43 | 13:10 | 13:43 | 14:10 | 14:43 | 15:10 | 15:43 | 16:10 | 16:43 | 17:10 | 17:43 | 18:10 | 18:43 | · |
Each column is one journey, headed by the time it sets off; one that finishes short of the usual end says where ("to …") — not every journey on this route runs the whole way. A · means that journey does not stop there. Times are shown at the route's main timing stops — buses serve all stops in between. Switch a table to All stops for every stop it calls at, or open a stop's own page for live departures there.
Christmas & bank holidays
These dates are not the usual timetable for the day they fall on. They come from the operator’s published data, which for Christmas and New Year is often late or incomplete, so check with Gwynfor Coaches before you travel. Everything above is an ordinary week.
Not published yet: Christmas Day and New Year's Day. Operators often publish festive timetables only a few weeks ahead, so check again nearer the date.
- Christmas Eve — Thursday, 24 December 2026 towards Morfa Bychan: 23 journeys, first 08:00 towards Gwastadnant: 23 journeys, first 07:20
- Monday, 28 December 2026 towards Morfa Bychan: 23 journeys, first 08:00 towards Gwastadnant: 22 journeys, first 08:09
- Tuesday, 29 December 2026 towards Morfa Bychan: 23 journeys, first 08:00 towards Gwastadnant: 23 journeys, first 07:20
- Wednesday, 30 December 2026 towards Morfa Bychan: 23 journeys, first 08:00 towards Gwastadnant: 23 journeys, first 07:20
- New Year's Eve — Thursday, 31 December 2026 towards Morfa Bychan: 23 journeys, first 08:00 towards Gwastadnant: 23 journeys, first 07:20
Route map
All stops on route S4
S4 towards Morfa Bychan
All 26 stops
- Pen-y-pass YHA Gwastadnant
- Lookout Car Park (opp) Bethania
- Bryn Gwynant (before) Bethania
- Ysgoldy (opp) Bethania
- Pont Bethania (after) Bethania
- Sygun Copper Mine (after) Beddgelert
- Tai Sygyn (o/s 2) Beddgelert
- Beddgelert A (at) Beddgelert
- Pont Aberglaslyn (before) Nantmor
- Nantmor Turn (after) Nantmor
- Brondanw Arms (opp) Garreg
- Pont Croesor (after) Prenteg
- Tan y Bryn (opp) Prenteg
- Market Square (after) Tremadog
- Capel Peniel (opp) Tremadog
- Porthmadog War Memorial (before) Porthmadog
- Rhes Cambrian (after) Porthmadog
- Sportsman (o/s) Porthmadog
- Porthmadog Park Stand C (at) Porthmadog
- Pen-y-Bryn (before) Porthmadog
- Village Square (at) Borth-y-Gest
- Min-y-Mor (nr) Borth-y-Gest
- Post Office (o/s) Morfa Bychan
- Capel Nazareth (after) Morfa Bychan
- Greenacres (in) Morfa Bychan
- Black Rock Sands Morfa Bychan
S4 towards Gwastadnant
All 27 stops
- Greenacres (in) Morfa Bychan
- Morfa Bychan (Bus Turning Point) Morfa Bychan
- Capel Siloam (before) Morfa Bychan
- Village Square (at) Borth-y-Gest
- Min-y-Mor (nr) Borth-y-Gest
- Garthfield (nr) Porthmadog
- Porthmadog Park Stand C (at) Porthmadog
- Porthmadog Tesco (o/s) Porthmadog
- Porthmadog Railway Station (o/s) Porthmadog
- Porthmadog Rail Station (East Entrance) Porthmadog
- Maes Gerddi (o/s 20) Porthmadog
- St Mary`s Church (before) Tremadog
- Market Square (o/s Post Office) Tremadog
- Garden Centre (after) Tremadog
- Bryn Fynnon (before) Prenteg
- Pont Croesor (after) Prenteg
- Brondanw Arms (o/s) Garreg
- Nantmor Turn (before) Nantmor
- Pont Aberglaslyn (after) Nantmor
- Beddgelert B (at) Beddgelert
- Tai Sygyn (o/s 17) Beddgelert
- Sygun Copper Mine (before) Beddgelert
- Pont Bethania (before) Bethania
- Ysgoldy (o/s) Bethania
- Bryn Gwynant (after) Bethania
- Lookout Car Park (o/s) Bethania
- Pen-y-pass YHA Gwastadnant
Service registration & registered changes
- Service change from 2 November 2026 Porthmadog High Steet → Pen Y Pass
- Service change effective 28 March 2026 To amend Timetable.
- Service change effective 3 November 2025 To amend Timetable.
- Service change effective 5 April 2025 To amend Timetable.
- Service change effective 4 November 2024 To amend Timetable.
- Service change effective 23 March 2024 To amend Timetable.
Registered as partly financially supported by a local authority (Gwynedd local authority).
From official Traffic Commissioner registrations. Registration PG2003099/36 · Changes in Gwynedd Council · All service changes →
Towns & areas on this route
Frequently asked questions
What time is the first S4 bus?
The first S4 departure on weekdays leaves at 07:20 (check the full timetable below for your stop, as times vary along the route — weekend times can differ).
What time is the last S4 bus?
The last S4 on weekdays leaves its first stop at 18:42. Always check the timetable for your specific stop — later stops are reached after this time.
How much does the S4 bus cost?
The England fare cap doesn't apply in Wales — Gwynfor Coaches sets the fares on the S4. Check their website or the Traveline Cymru fare finder for current prices.
Who runs the S4 bus?
The S4 is operated by Gwynfor Coaches.
Is the S4 bus timetable changing?
Yes — a change to the S4 is registered with the Traffic Commissioner and takes effect on 2 November 2026. See the registration record for details.
Timetable data from Gwynfor Coaches via the Traveline National Dataset. Registered with the Traffic Commissioner as PG2003099/36. Check before you travel — services can change at short notice.