Tywyn Point is at the extreme south-western end of Pembrey Sands, within the boundaries of the RAF's area of the beach. Access is restricted - usually to late afternoon / evenings and weekends. Wooden poles topped with orange tetrahedrons mark the boundaries, and red flags are flown from these poles when the firing range is in use - otherwise, this remote end of the beach is open.
The shore is sandy, backed by low dunes, and the RAF firing range - with plenty of signs warning not to enter. The estuary of the Gwendreath marks the end of the beach, and swimming is dangerous due to currents. Just around the point, the shore is sheltered and a good choice for sunbathing - very few people venture this far up the beach. There are millions of shells here - mostly razors, otter shells, rayed trough shells and cockles, and also a substantial wreck. The long sandy beach ends at a saltmarsh, and there is no way off at this end. The nearest parking is at Pembrey Country Park - 5 miles away along the beach. It's best to bring a bike!