Cae Gwynfryn is an unimproved grassland that is a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales.
Caeau Blaenau-mawr is a species rich damp grassland that is a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales.
Caeau Capel Hendre is a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales.
Caeau Nantsais are two fields next to a that are a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales.
Caeau Rhyd-y-gwiail is an area of grassland that is a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales.
Coed Gwempa is a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales. It is managed by the Woodland Trust, who describe it as mixed native woodland and ancient trees with abundant floral species like bluebell, meadowsweet and dog violet. Dormice have also been observed.
Coed Llandyfan is a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales. It is an ancient semi-natural broadleaved wood near the small village of Llandyfan, and is 6.7 hectares in extent.
Coedydd y Garn is an outcrop of limestone that is a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales.
Cors Farlais is a col that is a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales.
Cwar Glas Quarry and Sawdde Gorge is a quarry that is an important source of geological stratigraphy and of fossils that is a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales.
Crychan Forest Tracks is a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales. It was chosen as a special stage in the British Rally from 2006 to 2008.
Dinefwr Estate is a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales. Much of the site is a deer park with veteran trees.
Maesyprior is a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales. A system of glacial meltwater channels preserved at this site contains important geological evidence concerning the nature of late Pleistocene geomorphological processes in west Wales.
Mandinam a Coed Deri is an area of woodland and pasture that is a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales.
Pine Lodge Meadow is small hay meadow that is a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales.
Waun-Ddu is a part of the Mynydd Bach that is a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales.
Whitehill Down is a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales.
Ynys Uchaf is a section of floodplain of the River Gwendraeth that is a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales.
Tregyb Woodlands is a Site of Special Scientific Interest (SSSI) in Carmarthen & Dinefwr, Wales. Designated as a SSSI since 1980 as a conservation effort to protect and conserve the site, its area is 27 hectares.
