Traeth Glaslyn

Traeth Glaslyn Nature Reserve

Traeth Glaslyn Nature Reserve_Lin Cummins


Redshank © Tom Marshall

Ragged robin

Ragged robin © Lee Schofield


Polecat © Elliot Smith


Skylark © Amy Lewis

A stunning place to stop for a while, witnessing the ebb and flow of the tide and the array of life that goes with it.


LL48 6HT

OS Map Reference

SH 584379
OS Explorer Map OL18
A static map of Traeth Glaslyn

Know before you go

36 hectares

Entry fee


Parking information

Small carpark near birdhide

Grazing animals

Cattle, all year round.

Walking trails

Often wet and prone to flooding at high tide, take care at all times. 


The site is very tidal and can become completely submerged – please check the tides before visiting. Paths are muddy and should not be left, especially at the northern end of the reserve.


No dogs permitted

When to visit

Opening times

Open at all times

Best time to visit

All year

About the reserve

This ever-changing salt marsh and estuarine reserve is an ideal place to experience nature’s forces at work: the power of the tides, seasons and weather are all keenly felt.  Made up of a patchwork of wet grassland, salt marsh and wet willow woodland that at times can be completely submerged; this flood meadow is a haven for birds. Waders can be seen all year picking their way through the mud; the species changing with the seasons – it’s worth visiting more than once. The unique combination of flooding and brackish water also provides the conditions needed for some of our rarest plants. Stunning views and busy birds make this a great place to enjoy the ebb and flow.


Grazing for grassland

The Wildlife Trust aim to maintain the patchwork of open and wooded areas throughout the reserve.  Cattle graze the site in spring and winter in order to stop the further spread of scrub: in their absence, the grassland would likely be colonised by plants like bramble and gorse and eventually become woodland. Maintaining this diversity in habitat allows as many different species to use the site as possible.


Traeth Glaslyn is located South East of Porthmadog, at the end of the Cob – park in the layby on the A497 (SH 585 378). The bird hide is accessible via a small gate near the toll cottage. The northern end of reserve can be reached by walking North along the road, then using either a small stile on the Left opposite a high wall or turning Left at the crossroads until you reach the reserve boundary (SH 592 389).

Contact us

North Wales Wildlife Trust
Contact number: 01248 351541

Environmental designation

Site of Special Scientific Interest (SSSI)