RSPB reserve · Holyhead, Anglesey
South Stack Cliffs birdwatching guide
South Stack's sea cliffs stack thousands of guillemots and razorbills above the lighthouse each summer, with puffins among them and choughs tumbling over the heath year-round. Ellin's Tower gives telescope views of the colony without going near the cliff edge.
Key facts
- Habitat
- coastal
- Size
- 316 ha
- Entry fee (adult)
- Free
- Entry fee (child)
- Free
- Membership required
- No
- Hides
- 1
- Wheelchair access
- Limited / none
- Car park
- Yes
- Car park to hides
- 300m to Ellin's Tower seabird centre
- Toilets
- Yes
- Dogs
- Allowed
- Status
- open
- Best seasons
- spring, summer
Species by season
| Season | Species | Likelihood | Notes |
|---|---|---|---|
| spring | Chough (Pyrrhocorax pyrrhocorax) | common | Britain's easiest place to watch this rare crow |
| spring | Puffin (Fratercula arctica) | frequent | — |
| summer | Puffin (Fratercula arctica) | frequent | — |
Getting there
Holyhead, Anglesey, LL65 1YH
View on OpenStreetMap · Official website
Facilities & opening
Reserve open at all times; level path to the Ellin's Tower viewpoint, but 25 uneven steps on the alternative route
Explore more
Information last updated 25 July 2026.
Bird Places