Porth Oer is a small, sheltered bay on the north coast of the peninsula, owned by the National Trust. Its fame rests on a geological quirk: the dry sand squeaks loudly underfoot when you walk on it, a sound like a slow finger drawn across a balloon. Children discover this within about thirty seconds of arriving and then spend the next hour deliberately stomping around.
The beach itself is beautiful regardless of the acoustics — a compact arc of pale sand backed by low cliffs and grassy headland. The water is clean and usually calm, protected by the surrounding headlands. A National Trust car park sits at the top of the short lane down to the beach, with a seasonal café.
From the headland above the beach, a section of the Wales Coast Path leads west toward Mynydd Mawr and some of the finest coastal walking on the peninsula.