Known foremost for sailing, Abersoch's harbour and estuary on the south side of the Lleyn, are choc a bloc with sailing craft of all shapes and sizes. If you do not want to sail, then there are plenty of sandy beaches, or try a spot of mackerel fishing off the St Tudwal Islands - the sea off Lleyn is rich in fish. The St Tudwal Islands themselves are privately owned, but there are regular trips from Abersoch to view the caves and seabirds round the islands.
The next bay, Hells Mouth Bay (Porth Neigwl) occupies the south facing cusp at the end of the Lleyn. It is known for its strong rip tides, that grind the boulders on the beaches.