Holyhead Breakwater Country Park (Parc Gwledig Morglawdd Caergybi)
Council-run country park in an old quarry on the edge of Holyhead, with a lake, coastal heath, a café and easy access to walks up Holyhead Mountain and towards North Stack.

Holyhead Breakwater Country Park opened in 1990 on the site of the quarry that supplied stone for Holyhead Breakwater, built between 1846 and 1873. The council describes the breakwater, at 2.39 km, as the longest in Europe. Part of the park lies within the Isle of Anglesey National Landscape.
What to see and do
Walk around Llyn Llwynog, a lake used for fishing and model boats, then head out across the gorse and heather towards the rocky shore. Choughs and peregrines may be seen over the old quarry faces. Paths lead on to Holyhead Mountain and South Stack, and there is a free orienteering course you can download and print before you go.
Good to know
Caffi’r Parc is in the old warden’s house, and a volunteer-run North Wales Wildlife Trust kiosk sells drinks, ice cream and gifts. There is an information centre, a children’s play area and toilets, including an accessible toilet. The car park is charged, and the council sells an annual season ticket for it.