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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.

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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Cefn Crib | Vans & Touring

Address

Cefn Crib, Pennal, Machynlleth, Powys, SY20 9LB

Telephone
01654 791203

sian@cefncrib.co.uk

Machynlleth

Touring caravan and campervan pitches in Pennal, near Machynlleth, with hard-standing and grass pitches, modern facilities and easy access to the Dyfi Valley and coast. Ideal for touring Mid Wales. Book your pitch.
Dinas Camping

Address

Dinas, Llanbedr, Gwynedd, LL45 2PH

Telephone
01341 241585

hideawayinthehills@outlook.com

Llanbedr

Dates

From:

1 Jan 2026to31 Dec 2026

Dinas camping is a small, quiet site which allows Campfires. At Dinas you have the best of both worlds as it is located in the Rhinog foothills but only 3 miles from some glorious sandy beaches and Harlech castle.

Price
Price £22.00 to £27.00 per touring pitch per night normally for one car and 2 people
Nyth Robin | Glamping Holidays

Address

Nyth Robin, Aberdyfi, Gwynedd, LL35 0RG

Telephone
07731 783534

hello@nythrobin.co.uk

Aberdyfi

Dates

From:

31 Mar 2026to30 Oct 2026

Nyth Robin Glamping offers fabulous holidays in a variety of unique accommodation options. You can choose from a family-friendly bell tent, yurt, or dome, a cosy woodland cabin, a unique vintage caravan, or a quirky converted horsebox!
All the…

Price
Price £80.00 to £130.00 per unit per night
Ynysymaengwyn Caravan Park

Address

Ynysymaengwyn Caravan Park, Tywyn, Gwynedd, LL36 9RY

Telephone
01654 710684

info@ynysy.co.uk

Tywyn

Dates

From:

1 Jan 2026to31 Dec 2026

Local authority owned site situated in the grounds of an old manor house and woodlands, offers excellent facilities. Ideal base for walkers, cyclists, climbers, fishing and water sports. Open April - October.

Price
Price £15.00 to £30.00 per touring pitch per night normally for one car and 2 people
Portmeirion Village | Cottages

Address

Portmeirion Village, Penrhyndeudraeth, Gwynedd, LL48 6ET

Telephone
01766 770000

info@portmeirion-village.com

Penrhyndeudraeth

Dates

From:

1 Jan 2026to31 Dec 2026

Portmeirion has thirteen self-catering cottages sleeping from three to eight people. The cottages are let on a weekly basis or three nights at the weekend (Friday, Saturday and Sunday) and four nights during the week.

Price
Price £727.00 to £1,945.00 per unit per week
Bryn Melyn Apartments

Address

Bryn Melyn, Panorama Road, Barmouth, Gwynedd, LL42 1DQ

Telephone
01341 280556

info@brynmelyn.co.uk

Barmouth

Dates

From:

1 Jan 2026to31 Dec 2026

The location of Bryn Melyn is truly breathtaking, as it sits atop a hillside overlooking Barmouth on the Southern Snowdonia coast, with views of the Mawddach Estuary, Cadair Idris, and the sea. Despite its peaceful setting, it is only a short…

Price
Price £300.00 to £750.00 per unit per week
Dinas Caravan Park

Address

Dinas, Llanbedr, Gwynedd, LL45 2PH

Telephone
01341 241585

hideawayinthehills@outlook.com

Llanbedr

Dates

From:

1 Jan 2026to31 Dec 2026

Dinas Caravan Park is a small, quiet park with 8 static caravans for hire. Located in Southern Snowdonia between Harlech and Barmouth on the Ardudwy Way long distance path in the Rhinog foothills. 3 miles from sandy beaches and castle.

Price
Price £42.42 to £80.00 per unit per night
Garden Cottage at Torrent Walk Cottages

Address

Plas Hen, Brithdir, Dolgellau, United Kingdom, LL40 2RG

Telephone
01341 422783

richards@torrentwalkcottages.com

Brithdir, Dolgellau

Dates

From:

1 Jan 2026to31 Dec 2026

Dog Friendly Self-Catering Cottage - Sleeping 5 in 3 rooms with beautiful views over Cader Idris, Snowdonia.
Real log fire and Wifi available.
Great for couples, short breaks, family escapes and walking holidays. Dogs accepted at a surcharge of…

Price
Price £630.00 to £830.00 per unit per week
Min-y-Don Holiday & Touring Park

Address

Beach Road, Harlech, Gwynedd, LL46 2UG

Telephone
01766 780286

info@minydonpark.co.uk

Harlech

Dates

From:

1 Jan 2026to31 Dec 2026

The 15-acre park, which has 112 caravan holiday homes and 82 touring caravan and motorhome pitches, nestles below Harlech Castle, alongside the famous Royal St David's Golf Club and just a short walk from one of the best beaches in Wales.

Price
Price £28.50 to £30.50 per touring pitch per night normally for one car and 2 people
Gogarth Hall Farm | B & B

Address

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

Telephone
07908 654730

brees2000@aol.com

Machynlleth

Dates

From:

1 Jan 2026to31 Dec 2026

Situated within Snowdonia National Park in a peaceful part of Mid Wales, Gogarth Hall Farm offers peace and tranquillity that is rich in wild life and a haven for rare birds.

Price
Price £50.00 per person per night for bed & breakfast
Gwerniago Camping Site

Address

Pennal, Machynlleth, Powys, SY20 9JX

Telephone
01654 791227

contact@gwerniago.co.uk

Machynlleth

Dates

From:

24 Mar 2027to1 Oct 2027

Gwerniago Campsite is located in Mid Wales between Machynlleth and Aberdyfi. Electric, Non-Electric, Grass & Hardstanding pitches available. Campfires allowed, Parking on pitch. Ideal base for Beaches, Mountains, Dyfi Bike Park, Mach Loop.

Price
Price £22.00 to £30.00 per touring pitch per night normally for one car and 2 people
Dyffryn Seaside Estate Holiday Park

Address

Dyffryn Ardudwy, Gwynedd, LL44 2HD

Telephone
01341 247220

info@dyffryn-seaside-estate.co.uk

Gwynedd

Dates

From:

1 Jan 2026to31 Dec 2026

Caravans for hire 4-6 berths. Wheelchair accessible caravans available. Also 4-6 berth bungalows. Site facilities include spacious pub, self service shop, take away/cafe, laundry, indoor leisure complex and playground. 200 Camping pitches.

Price
Price £21.00 to £30.00 per touring pitch per night normally for one car and 2 people
Brigands Inn

Address

Mallwyd, Dinas Mawddwy, Gwynedd, SY20 9HJ

Telephone
01650 511999

info@brigandsinn.com

Dinas Mawddwy

Dates

From:

1 Jan 2026to31 Dec 2026

15th Century Coaching Inn set in the heart of the Cambrian Mountains and on the upper banks of the River Dovey. Elegant, spacious bedrooms & deluxe four poster- rooms, all with individual character & charm. Finest local produce used.