Crymlyn Bog and Pant-y-Sais Fen National Nature Reserve (Swansea)

These sites are next to each other and both form the National Nature Reserve. The reserves are also a Ramsar site, SAC and SSSI. The sites are home to a host of plants and animals including many dragonflies and damselflies. High-lights are hairy dragonfly, variable damselfly, scarce blue-tailed damselfly, ruddy darter, keeled skimmer, black darter they are also home to the fen raft spider. Crymlyn Bog is the most extensive lowland fen in Wales. 

Opening times: The car park barrier is locked overnight. The visitor centre is only open for pre-booked visits or events.

Entry fee: Free

Getting there: Car parks at both sites.

Bus timetable

Facilities: Boardwalks at both sites.

Events: Advertised on the facebook page.


Contact Us

Grid reference (Pant-y-Sais): SS 712 946.
Nearest postcode: SA10 6JS.

Grid reference (Crymlyn Bog): SS 696 945.
Nearest postcode: SA1 7BN.

T: 0300 065 3000

Crymlyn Bog and Pant-y-Sais Fen National Nature Reserve (Swansea)