Treheli Farm
✓ Clifftop field setting with views over Cardigan Bay
🏖️ 2.71 miles from Porth Neigwl (Excellent water quality)
Porthmadog
Shell Island
Porthmadog
📍 Llanbedr, LL45 2PJ
🚆 Nearest station: · 1.3 mi
🌊 Llandanwg: Excellent bathing water 1.1 mi · Environment Agency
Photo: DS Pugh (CC BY-SA 2.0)
- One of the biggest campsites in the UK and Europe
- Accessible via a tidal causeway with sandy beaches
- 800 pitches across 380 acres of camping ground
- Fishing and crabbing available on site
- No restrictions on tent size or number per pitch
Shell Island, also known as Mochras, is a huge coastal campsite near Porthmadog, Gwynedd, reached via a tidal causeway and set among sandy beaches and dunes. On site you'll find a snack bar, Tavern bar, coffee shop, supermarket, gift shop, games room, sports room, laundrette and children's play park, along with fishing and crabbing spots right by the harbour. With 800 pitches across 380 acres, it's one of the largest campsites in the UK, offering tents, motorhomes, chalets and flats with no restrictions on tent size. Beyond the site, Llandanwg beach is just over a mile away, Llanbedr station 1.3 miles, and museums including Lasynys Fawr and Porthmadog Maritime Museum are within a short drive, making it easy to combine beach time with local exploring.
How far to…
- Station
- 1.3 miles
- Beach
- 1.1 miles
Practical details
- Open
- 26th March to 5th October 2026
- Families
- A Families and Couples Campsite
- Parking
- Main car park by the barriers
Accommodation on site
- Touring/tent pitches
- Flats
Details taken from the operator's own website on 30 Sep 2026 — check current terms when you book.
Facilities
- ✓ Swimming Pool
- ✓ Bar
- ✓ Cafe
- ✓ Playground
- ✓ Amusements
- ✓ Toilets
- ✓ Disabled Access
- ✓ Baby Changing
- ✓ Gift Shop
- ✓ Picnic Area
- ✓ Pet Friendly
- ✓ Parking
- ✓ EV Charging
- ✓ Laundrette
- ✓ Beach Access
- 🔌 EV Charging Nearby
Do you own or manage Shell Island?
Claim this free listing to keep your details, facilities and prices up to date — and see how many visitors we send to your website.
Create a free account to claimShell Island photo gallery
Click any photo to enlarge
📷 Been here? Add your photo
Questions & answers
Thinking of booking? Ask people who've actually stayed.
No questions yet — ask the first and get an answer from someone who's been.
Log in or create a free account to ask or answer questions.
Where you'll be
Shell Island
Explore the area
Everything within reach of Shell Island — days out, famous places and the local food worth walking to.
🎡
Things to do
Days out and attractions, nearest first
🏛️ Museums & Galleries · 4.5 mi
Lasynys Fawr
Located at the NE boundary of the community, set back some 250m from the road and sited against a ro...
🏛️ Museums & Galleries · 7.4 mi
Porthmadog Maritime Museum
Porthmadog Maritime Museum sits in the last remaining slate shed on Porthmadog's historic harbour, t...
🏛️ Museums & Galleries · 7.7 mi
Tŷ Gwyn and the Maritime Museum
Tŷ Gwyn and the Maritime Museum occupies the Barmouth Sailors' Institute, a rare survivor of the sea...
🏛️ Museums & Galleries · 7.7 mi
Sailors' Institute
Barmouth Sailors' Institute is a rare surviving nineteenth-century seamen's institute, telling the s...
🏛️ Museums & Galleries · 9 mi
Lloyd George Museum
This museum in Llanystumdwy tells the story of former Prime Minister David Lloyd George, using objec...
🦁 Zoos & Wildlife · 9.2 mi
Dwyfor Ranch Rabbit farm and Animal Park
🏰
Places to visit
The famous spots within a day trip
Castle & Heritage · 3.2 mi
Castell Harlech
Landmark · 6.8 mi
Portmeirion
Mountain · 17.5 mi
Snowdon
Castle & Heritage · 18.9 mi
Tomen Castell
🍦
Eat & drink local
The local legends within walking-ish distance
More in Porthmadog
Similar stays
Tyn-y-Mur
✓ Closest campsite to the village of Abersoch
🏖️ 1.27 miles from Abersoch (Excellent water quality)
Porthmadog
Book direct