Mynydd Mawr, Braich y Pwll and Pen y Cil at the end of Llŷn

The walk starts from the car park at the top of Mynydd Mawr, by the old coastguard lookout. It goes out to Braich y Pwll, the last cape of Llŷn, with Bardsey Island across the Sound, where medieval pilgrims set out for the island. The Llŷn Coastal Path then follows the cliffs round the south side, above Ffynnon Fair, St Mary's Well, and over Mynydd y Gwyddel to Pen y Cil. The way back turns inland by footpaths and quiet lanes past Bodermid to the car park.

It is 8.1 km with 273 m of ascent; allow about 2¾ hours. The grade is Easy.

The cliffs have sheer drops and heavy surf: stay on the path. Ffynnon Fair, a spring below the high-tide mark at the foot of the cliff, is covered at high tide and people have drowned trying to reach it: do not scramble down to it. Dogs must be on leads around livestock. A quarter of the walk is on lanes with no pavement.

The car park at the top has no fee shown in OpenStreetMap. The National Trust's own circular walk starts from the lower car park and is shorter (3.2 km).

Route drawn by Global Adventurer along OpenStreetMap paths (© OpenStreetMap contributors, ODbL), with figures worked out from it. Check the forecast and the ground on the day: paths change.