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Dark Skies in Southern Eryri

Southern Eryri (Southern Snowdonia) is part of Eryri National Park, which was named an International Dark Sky Reserve in 2015 for the quality of its night skies. Around Cadair Idris, the Mawddach estuary, Bala and the Dysynni valley, there are very few towns and little light pollution, so on a clear, moonless night you can see the Milky Way, the major constellations and shooting stars with the naked eye. This guide covers the best places to stargaze in Southern Eryri, when to go and where to stay. Dark sky places to stay are listed below.

What is a Dark Sky Reserve?

An International Dark Sky Reserve is an area recognised by DarkSky International for its exceptionally dark night skies and for the work done to protect them. Eryri has a dark core where lighting is kept to a minimum, surrounded by communities that work to reduce light pollution. Bannau Brycheiniog (Brecon Beacons) is also a Dark Sky Reserve, and the Elan Valley is a Dark Sky Park, so Mid Wales has some of the darkest skies in Britain.

Where are the best places to stargaze in Southern Eryri?

Bwlch y Groes. One of the highest tarmac passes in Wales, on the minor road between Dinas Mawddwy and Llanuwchllyn near Bala. There's a small parking area near the top with wide views of the sky in every direction.
Llynnau Cregennan, the Cregennan Lakes. Two lakes on the foothills of Cadair Idris above Arthog, with a car park by the larger lake. The mountains block the glow from the coast, and the reflection of the stars on a still night is worth the drive.
Tal-y-llyn and the Dysynni valley. Llyn Mwyngil, the lake at Tal-y-llyn, sits under the southern cliffs of Cadair Idris, a long way from any town.
The Mawddach estuary. The flat estuary between Dolgellau and Barmouth gives big, open skies, especially from the Mawddach Trail near Penmaenpool and Arthog.
Llyn Tegid, Bala. The largest natural lake in Wales has dark shores away from the town, with open views to the south.
The Harlech and Ardudwy coast. Looking west over Cardigan Bay, the sky over the sea is very dark, and the beaches at Harlech and Llandanwg are good places to watch the stars set.

When is the best time for stargazing?

The darkest nights are from October to March, when it gets dark early and the Milky Way is visible in the evening in autumn. Pick a clear night close to the new moon, and give your eyes 20 minutes to adjust. The Perseid meteor shower peaks in mid August and the Geminids in mid December. During strong solar storms, the Northern Lights can occasionally be seen from Mid Wales, low on the northern horizon.

Tips for stargazing

Check the forecast for clear skies and go out after the moon has set.
Take a red torch, warm layers, a hat and something to sit on. It's cold at night in the hills, even in summer.
Stay on roads and paths you know, and don't walk onto open mountain in the dark without experience and a map.
Binoculars show far more than the naked eye; a stargazing app helps you find your way round the sky.

Where to stay for dark skies

Stay somewhere you can step outside and look up. Graig Wen near Arthog, on the Mawddach Trail, is close to the Cregennan Lakes, and Gwesty Pen-y-Bont is a 16th-century inn on the shore of Tal-y-llyn. Dolgellau, Bala, Tywyn and Harlech all have cottages, farm stays and glamping sites away from street lights. See more dark skies accommodation across Mid Wales.

More stargazing in Mid Wales

See our guide to dark skies and stargazing in Mid Wales, including the Elan Valley Dark Sky Park and the Cambrian Mountains. For a ready-made plan, our itineraries include a Dark Skies Weekend and a Southern Eryri weekend.

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Dark sky places to stay

Inspiration

Dark Sky Destination - Brecon Beacons
Dark Sky Destination - Elan Valley
Dark Skies Accommodation in Mid Wales
Dark Skies and Stargazing in Mid Wales

Some of the darkest skies in Britain, with the Milky Way overhead on a clear night. Here is where to go, what to look for and when.

Number of results: 76

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Morben Isaf Holiday Home & Touring Park

Address

Derwenlas, Machynlleth, Powys, SY20 8SR

Telephone
01654 781473

info@morbenisaf.co.uk

Machynlleth

Dates

From:

1 Jan 2026to31 Dec 2026

This Holiday Home and Touring Park is ideally located near the historic and picturesque town of Machynlleth.

Price
Price £15.00 to £26.00 per touring pitch per night normally for one car and 2 people
Maes Carafannau Trefeddian Uchaf

Address

Trefeddian Uchaf, Aberdyfi, Gwynedd, LL35 0SF

Telephone
07814 949032

rhiantrefeddian@yahoo.co.uk

Aberdyfi

Dates

From:

1 Jan 2026to31 Dec 2026

2 caravans on Welsh speaking family farm within walking distance of Aberdyfi village, the 4 miles of beautiful sandy beach and Aberdyfi's wonderful 18 hole golf course. Wales Coastal path goes through the farm.
Yr Hen Stablau

Address

Pantlludw, Machynlleth, Powys, SY20 9JR

Telephone
01654 702218

stablau@selfcateringcottagewales.co.uk

Machynlleth

Dates

From:

31 Jan 2026to31 Oct 2026

Yr Hen Stablau in southern Snowdonia just I mile from Machynlleth, sleeps 6 and has ground floor wheelchair access. The cottage is an energy efficient building renovated with local slate and timber. Beautiful garden,1 mile to Wales Coast Path and 8…

Price
Price £590.00 per unit per week
Gogarth Hall Farm Holidays

Address

Gogarth Hall Farm Holidays, Pennal, Machynlleth, Powys, SY20 9LB

Telephone
07908 654730

brees2000@aol.com

Machynlleth

Dates

From:

1 Jan 2026to31 Dec 2026

4 Self-catering cottages on a working farm between Machynlleth & Aberdyfi. Gogarth Hall Farm and its tranquillity offers Barn Owls, Bats and Kites a safe haven, thus the farm has won the Countryside Caretakers Award for conservation.

Price
Price £150.00 to £895.00 per unit per week
Ty Derw Country House B&B

Address

Old Road, Dinas Mawddwy, Nr Machynlleth, Powys, SY20 9LR

Telephone
07970349965

tyderw@btinternet.com

Dinas Mawddwy, Nr Machynlleth

Dates

From:

1 Jan 2026to31 Dec 2026

Ty Derw is a charming Victorian stone built B&B in a picturesque setting in the Dovey Valley, about 12 miles from Machynlleth and Dolgellau. The four guest rooms have been refurbished to a very high standard. Ample parking.

Price
Price £50.00 to £57.50 per person per night for bed & breakfast
Bala Backpackers

Address

32 Tegid Street, Bala, Gwynedd, LL23 7EL

Telephone
01678 521700

info@bala-backpackers.co.uk

Bala

Dates

From:

1 Jan 2026to31 Dec 2026

Hostel-style value Tourist Accommodation in 1800's character buildings, refurbished, offering essential provision with a hint of luxury. Located in the town of Bala, famous for its Lake and White Water River. Sleeps 31.

Price
Price £25.00 to £65.00 per person per night
Dyffryn Seaside Estate

Address

Dyffryn Ardudwy, Gwynedd, LL44 2HD

Telephone
01341 247220

info@dyffryn-seaside-estate.co.uk

Gwynedd

Dates

From:

1 Jan 2026to31 Dec 2026

Carefree Holidays for all the family........
Whatever your tastes, Dyffryn Seaside Estate offers you a warm welcome. Beautifully situated, it sums up Meirionnydd's own proud motto, Tra Mor, Tra Meirion; betwixt sea and mountain.

Price
Price £340.00 to £410.00 per unit per week
Trefeddian Hotel | Self Catering

Address

Aberdyfi, Gwynedd, LL35 0SB

Telephone
01654 767 213

info@trefwales.com

Aberdyfi

Dates

From:

18 Jan 2026to6 Dec 2026

Seascape, Luxury five-star Self Catering Accommodation, with Panoramic Sea Views Overlooking Cardigan Bay.

Price
Price £850.00 to £2,500.00 per unit per week
Llety Brynawel Guest House

Address

Brynawel, Tower Road, Pennal, Machynlleth, SY20 9DP

Telephone
01654 791206

info@lletybrynawel.co.uk

Pennal

Dates

From:

1 Jan 2026to31 Dec 2026

Llety Brynawel Guest House is a magnificent Georgian period guest house of immense charm and character situated in the beautiful village of Pennal amidst the famous Snowdonia National Park.

Price
Price £115.00 to £125.00 per room per night for bed & breakfast
Penmaenuchaf Hotel

Address

Penmaenuchaf Hotel, Penmaenpool, Dolgellau, Gwynedd, LL40 1YB

Telephone
01341 212121

reservations@penmaenuchaf.co.uk

Dolgellau

Dates

From:

1 Jan 2026to31 Dec 2026

Perched high above the Mawddach estuary at the foot of the rugged Cadair Idris, you’ll find our stone-fronted Penmaenuchaf. Inspired by the dramatic ancient landscape of Eryri (Snowdonia) National Park, this grand old house has its own beautiful…

Price
Price £85.00 to £550.00 per room per night for bed & breakfast
Nyth Robin Touring Site

Address

Nyth Robin, Aberdyfi, Gwynedd, LL35 0RG

Telephone
07731 783534

hello@nythrobin.co.uk

Aberdyfi

Dates

From:

31 Mar 2026to30 Oct 2026

Small, friendly, eco touring site, just outside the pretty seaside village of Aberdovey in mid-Wales, and within the Snowdonia National Park. Secluded site set in 7 acres of private woodland with short walks.
There are just 9 touring pitches…

Price
Price £25.00 to £35.00 per touring pitch per night normally for one car and 2 people
Dyffryn Seaside Estate Holiday Home Park

Address

Dyffryn Ardudwy, Gwynedd, LL44 2HD

Telephone
01341 247220

info@dyffryn-seaside-estate.co.uk

Gwynedd

Dates

From:

1 Jan 2026to31 Dec 2026

Two miles of magnificent beach, mostly sand, offers joy to kiddies and adults alike. The Estate greets you with an immediate sense of release and space; 800 acres of it, all level and much pleasantly planted with trees
Cynfal Farm Cottages

Address

Cynfal Farm Cottages, Bryncrug, Tywyn, Gwynedd, LL36 9RB

Telephone
07971 065 953

cynfalfrm@gmail.com

Bryncrug, Tywyn

Dates

From:

1 Jan 2026to31 Dec 2026

Cynfal Farm in Southern Snowdonia is the perfect holiday location for couples or families seeking something rather special. Two well apointed self catering holiday homes. Own holt at Cynfal for the Tal y llyn Steam Railway.

Price
Price £450.00 to £910.00 per unit per week
Llanllwyda Caravan Site

Address

Llanfihangel Y Pennant, Tywyn, Gwynedd, LL36 9TN

Telephone
01654 782276

rhianmaiwilliams@hotmail.com

Tywyn

Dates

From:

1 Jan 2026to31 Dec 2026

A lovely laid back secluded site on a working farm. Its perfect to get away from it all and relax. Locality - Southern Snowdonia.

Price
Price £14.00 to £20.00 per touring pitch per night normally for one car and 2 people
Cefn Crib Caravan Park

Address

Pennal, Machynlleth, Powys, SY20 9LB

Telephone
07908 654730

brees2000@aol.com

Machynlleth

Dates

From:

1 Jan 2026to31 Dec 2026

Cefn Crib Caravan Park is a small family-run park, situated on a working farm in Snowdonia National Park. Surrounded by mountains, valleys and woodland this well maintained park offers peace and tranquility.

Price
Price £10.00 to £20.00 per touring pitch per night normally for one car and 2 people
Garth Holiday Park | Rentals

Address

Garth Road, Machynlleth, Powys, SY208HQ

Telephone
01654 702194

info@garthapp.co.uk

Machynlleth

Garth Holiday Park is a family-run holiday park in Machynlleth, Powys, set above the Dyfi Valley with views towards Eryri (Snowdonia) National Park. Just a short walk from the historic market town, it offers a peaceful base for exploring Mid Wales,…

Price
Price £110.00 to £135.00 per unit per night
Lake Vyrnwy Hotel & Spa

Address

Lake Vyrnwy, Llanwddyn, Powys, SY10 0LY

Telephone
01691 870692

info@lakevyrnwyhotel.co.uk

Llanwddyn

Dates

From:

1 Jan 2026to31 Dec 2026

Located high on the hillsides of the Berwyn Mountain range within the 24,000 acre Vyrnwy Nature Reserve, the Lake Vyrnwy Hotel & Spa commands panoramic views to all horizons. The hotel has 52 letting rooms of which 34 have lake views.

Price
Price £125.00 to £185.00 per room per night for bed & breakfast
Gwynedd Holiday Park

Address

Neptune Road, Tywyn, Gwynedd, LL36 0DL

Telephone
01654 710461

scl@salopcaravans.co.uk

Tywyn

Dates

From:

1 Jan 2026to31 Dec 2026

This immaculately kept park is small and unashamedly select, with manicured lawns and landscaped gardens.
Centre for Alternative Technology | Stay

Address

Pantperthog, Machynlleth, Powys, SY20 9AZ

Telephone
01654 705950

Machynlleth

Dates

From:

1 Jan 2026to31 Dec 2026

CAT’s on-site accommodation is housed within the WISE building, a beautifully designed and award winning eco facility right in the middle of the Visitor Centre. Visitors can dine in CAT's vegetarian café and enjoy free access to the Visitor Centre.

Price
Price £40.00 per person per night to £80.00 per room per night for bed & breakfast
Bryn Elltyd Eco House

Address

Tanygrisiau, Blaenau Ffestiniog, Gwynedd, LL41 3TW

Telephone
01766 831356

info@ecohouse.wales

Blaenau Ffestiniog

Dates

From:

1 Jan 2026to31 Dec 2026

Eco Friendly, Bryn Elltyd is carbon neutral. All energy inputs from renewables, located in the heart of the Snowdonia National Park at the foot of the Moelwyn mountains, this is an ideal location to explore North Wales.

Price
Price £166.00 to £170.00 per unit per night
Einion House

Address

Friog, Y Friog, Gwynedd, LL38 2NX

Telephone
01341 250644

stay@einionhouse.co.uk

Y Friog

Dates

From:

1 Jan 2026to31 Dec 2026

Scenic Views to Sea - 4 star Georgian B&B, Southern Snowdonia, nr Dolgellau opposite Barmouth. Walk to The Mawddach Trail, Wales Coastal Path, Blue Lake. Great Walks & Cycle trails, castles

Price
Price £95.00 per room per night for bed & breakfast