South Stack Lighthouse is a historic lighthouse located on the western coast of Holy Island, near Holyhead in North Wales. Built-in 1809, the lighthouse stands at the top of a steep, rocky island known as South Stack, which is connected to the mainland by a footbridge.

The lighthouse was constructed to guide ships safely through the treacherous waters of the Irish Sea and has been in operation ever since. It was originally powered by oil lamps and later converted to electricity. Today, the lighthouse is fully automated and monitored remotely.

Visitors to South Stack Lighthouse can climb the 400 steps to the top of the tower for stunning views of the surrounding area. The lighthouse also offers guided tours and exhibits about its history and the role it played in maritime navigation.

In addition to the lighthouse, the South Stack area is known for its rugged cliffs, diverse birdlife, and scenic coastal walks. It is a popular destination for nature lovers, hikers, and photographers.

Overall, South Stack Lighthouse is an iconic landmark in North Wales that showcases the region’s rich history and natural beauty.