Porthor, on the rugged northern coast of the Llŷn Peninsula, is better known in English as Whistling Sands for the squeak the sand makes underfoot. Cared for by National Trust Cymru, it was once a busy port, importing lime and coal and exporting butter, cheese, eggs and poultry. The sea suits surfing and bodyboarding, and the Wales Coast Path runs in both directions from the car park. The Trust's Porthor walk is an easy 1 mile circuit from the car park past Dinas Bach and Dinas Fawr, islands probably fortified in the Iron Age and now a haunt of grey seals. Dogs are welcome on the coastal paths all year but are not allowed on the beach in spring and summer, though they may sit on the cafe terrace. Reviewers praise the beach cafe, which is not run by the Trust. The pay and display machines take coins only, so the Trust recommends downloading the JustPark app beforehand, and a steep tarmac lane of about 300 metres leads from the car park and its toilets down to the sand.