Penmon sits in a pleasingly isolated position on the eastern tip of Anglesey at the northern end of the Menai Strait. There are two main beaches here, both displaying a very different character. Out on the headland, just west of the Trwyn Du lighthouse there is a small pebble beach. This exposed spot is open to the elements but the views along the north coast of the main land and across to the Great Orme at Llandudno are superb.
The adjacent Puffin Island/Ynys Seiriol is an intriguing lump of limestone, much like a miniature version of the Great Orme headland, albeit one separated from the land by a water channel. There was once a huge population of Puffins resident here but a rat infestation saw a dramatic reduction in numbers. A poisoning campaign against the rats has allowed the bird population on the island to recover somewhat. There are also the remains of a monastic settlement here. Boat trips around the island are available but you will have to go to Beaumaris for this.
A kilometre back towards Beaumaris, and on the banks of the Menai Strait, is a wider, more sedate beach at Porth Penmon. This peaceful, sheltered place is perfect some quiet contemplation and relaxation.
There are no facilities at either beach, but there is a café at Penmon Point (located in the old lighthouse pilot building) and a small shop in the nearby Llangoed. If you require anything more substantial the town of Beaumaris is your best bet.
Dogs are allowed on both beaches.
There are small car parks close to both of the beaches.