Castell Bach is dated to about 300 BC, its earthworks providing
defence for its Iron Age inhabitants. Unfortunately much of the
fort has been lost by erosion to the sea. The lower point at
Castell Bach has access to a quiet, sandy little beach, leading
from flat grassland, ideal for a picnic.
Views from here are of
Birds Rock to the North, and
Ynys Lochtyn to the South.
If you approach this cache from the cliff path at Cwmtydu, you
will walk through a small patch of National Trust land. It can be
accessed by at least two other points but parking is very limited
there, unlike that from the Cwmtydu cliff path side.
Parking at Cwmtydu can be found at N52 11.418 W4 24.392.
Cwmtydu is a secluded little bay that was once renowned for
smugglers and pirates with its many hidden little caves and coves.
Sion Cwilt was one such smuggler who used this bay.
On the sea front stands a limekiln that has been restored in
recent years, a memory of time gone by.
During WW1 a U-boat commander came ashore here to gather fresh
supplies for his crew. But now the only landings on the beach are
that of Atlantic Grey Seals who come in shore to give birth to
their pups during the autumn season.