Short birdwatching visit · North Wales Wildlife Trust / National Trust
Cemlyn Nature Reserve
- Tier
- Worth a special trip
- Best season
- May–July for breeding terns
- Headline birds
- Arctic Tern · Sandwich Tern · Common Tern
- Parking
- Bryn Aber is the western car park; the National Trust warns that tides affect it.
- Hides
- Not stated by the operator
- Step-free
- The shingle ridge is unsuitable for wheelchairs and prams. The Trust describes a more distant roadside lagoon view; watch for traffic.
Cemlyn Bay, near Cemaes · LL67 0DY
Cemlyn pairs a coastal lagoon with a striking shingle ridge on Anglesey’s north coast. North Wales Wildlife Trust names Sandwich, Common and Arctic Terns at the breeding colony from May to July. Watch from the public side and follow the wardens’ directions during the nesting season. The loose shingle is strenuous underfoot, while the operator also describes a more distant view across the lagoon from the road near the western car park. This is a place to settle and compare birds moving between sea and lagoon, with the weather, tide and permitted route shaping the visit.
When to go and where to look
Plan a May to July visit around the tern colony described by North Wales Wildlife Trust. Choose the authorised watching place on arrival and follow the summer wardens and fencing. The shingle ridge requires careful footing; keep to the seaward side during the breeding season when directed. If that ground is unsuitable, read the operator’s description of the more distant roadside lagoon view and remain alert to traffic. Check tide times before using Bryn Aber car park. Spend time comparing the terns’ shape and flight across the lagoon, keeping the nesting islands undisturbed.
Sources: North Wales Wildlife Trust: Cemlyn birds and public access · National Trust: Cemlyn visitor approach. Planning reviewed 2026-10-25.
Birds and seasons
- Arctic Tern · Headline bird — May–July Source for Arctic Tern
- Sandwich Tern · Headline bird — May–July Source for Sandwich Tern
- Common Tern · Headline bird — May–July Source for Common Tern
Plan your visit
- Hides and viewpoints
- Not stated by the operator – check before travelling
- Paths
- From late April to August, follow wardens and fencing and use the seaward side of the ridge.
- Toilets
- Not stated by the operator – check before travelling
- Parking
- Bryn Aber is the western car park; the National Trust warns that tides affect it.
- Dogs
- Dogs must be on a lead.
- Access notes
- The shingle ridge is unsuitable for wheelchairs and prams. The Trust describes a more distant roadside lagoon view; watch for traffic.
- Step-free access
- The shingle ridge is unsuitable for wheelchairs and prams. The Trust describes a more distant roadside lagoon view; watch for traffic.
Getting there: Turn off the A5025 at Tregele and follow the operator’s Bryn Aber car-park directions. The map marks the published western parking grid, rather than the nesting islands. Check tide times before arrival.
Sources
Social preview: original typographic artwork by Does Your Duck Quack.
Nearby special trips
- Great Orme · 27.9 straight-line miles
- Gwaith Powdwr Nature Reserve · 38.3 straight-line miles
- Morfa Harlech National Nature Reserve · 41.3 straight-line miles
Continue birding nearby
Nearest full guide: RSPB South Stack, 10.4 miles away in a straight line.
- Cors Erddreiniog National Nature Reserve · 11.0 miles in a straight line
- Cors Goch Nature Reserve · 13.1 miles in a straight line
- Cors Bodeilio National Nature Reserve · 14.9 miles in a straight line