Tonfanau (pronounced 'Tonn-van-eye') is a little-visited beach of sand and rocks, backed by shingle and boulder clay banks. The Afon Dysynni emerges to the south, whilst northwards the shore is mostly rocks, shingle and some low-tide sandy areas.
Tonfanau rail station is approximately 400 yards away, and access to the shore is along a public footpath, passing the remains of an old army camp. The nearby road is relatively wide with little traffic, and roadside parking is possible near the station. The area was once part of a firing range, and any suspicious objects found should be left alone and reported to the police.
About 1¼ miles to the north is Ogof Owain, a small cave where Owain Glyndwr is said to have hidden from the English in the early 15th century. A little further north is Cae-du, where a campsite overlooks a shore of rocks, pebbles and some small patches of low tide sand. The low cliffs are of boulder clay, and the Cambrian Coast rail line runs just behind the site. Parking for beach visitors is allowed - pay at the farmhouse. Some parking can also be found in lay-bys about ½ mile north on the A493, but bear in mind that the county road ends at the railway bridge; there is no public right of way on to the shore.