The River Towy is one of the longest rivers flowing entirely within Wales. Its total length is 120 km (75 mi). It is noted for its sea trout and salmon fishing.

Carmarthenshire is a county in the south-west of Wales. The three largest towns are Llanelli, Carmarthen and Ammanford. Carmarthen is the county town and administrative centre. The county is known as the "Garden of Wales" and is also home to the National Botanic Garden of Wales.