The largest beach is '''Hell's Mouth''' between Abersoch and Aberdaron. Other large beaches are Llanbedrog and Nefyn. Smaller but really delightful beaches are those at Porth Oer on the north coast near Aberdaron and '''Porth Ysgo''' on the south coast, where there is something for lovers of industrial archaeology as well.
There are impressive headlands west of Aberdaron, giving superb views over Bardsey Island (''Ynys Enlli''). There are many others but a really fine one is '''Mynydd Penarfynedd''' to the east of Porth Ysgo. You may find navigation a problem here because a landslip has closed the obvious road but persistence will be adequately rewarded.
'''Nant Gwrtheyrn''' on the north coast, where a tiny hamlet, until recently only accessible by sea, has been converted into a Welsh language and cultural centre. Some good quarrying remains on the cliffs.
'''Carn Fadryn''' is an ancient earthwork on a mound roughly in the centre of the peninsula, with terrific coastal views north, west and south and views west to the mountains of Snowdonia.
'''Bryncir Woolen Mill ''' on the A487 is well worth a visit.