Lichen at Traeth Llyfn in the late afternoon sun

Traeth Llyfn is an attractive west-facing sandy beach on the north Pembrokeshire coast, viewed here looking south-east from the north headland in the late afternoon sun when just about everyone else had gone in for tea.

The cliffs are mostly in the dark grey Aber Mawr Shale Formation (Ordovician), steeply dipping to vertically bedded, with a few thin tuff bands (volcanic ash bands). There are igneous intrusions at the north end of Traeth Llyfn including a dolerite/gabbro sill which forms the un-named north headland to the bay (here).

Access to Traeth Llyfn is by boat or by a bracing walk along the cliff top path from Abereiddi Bay 3/4 of a mile away. There are no facilities here and no vehicular access. A lovely place...