The Trwyn Du Lighthouse was designed by James Walker and completed in 1838.
Puffin Island, or Puffin Island (Ynys Seiriol), located just offshore, serves as a significant nesting colony for great cormorants.
The lighthouse tower features a distinct bell that was historically used as a fog signal.
The surrounding waters are part of the Menai Strait Special Area of Conservation.
The limestone geology here dates back to the Carboniferous period, roughly 300 million years ago.
Trwyn Penmon Point is the easternmost tip of the Isle of Anglesey, offering a rugged shoreline overlooking the Menai Strait and Puffin Island. The site is anchored by the Penmon Lighthouse, a 19th-century white tower with red bands known locally as Trwyn Du Lighthouse. Tidal currents here are notoriously strong, creating significant turbulence known as the Swellies near the strait entrance. The coastline consists of limestone cliffs and pebble beaches accessible via a narrow, gated road. Visitors can frequently spot seals and porpoises in the surrounding waters. The area is designated as part of the Anglesey Area of Outstanding Natural Beauty. The land is privately owned, with access facilitated through a toll-gate system.
The shoreline directly in front of the Trwyn Du Lighthouse during low tide for a low-angle perspective.
Bring sturdy, non-slip footwear as the limestone rocks and pebbles can be unstable.
Check local tide tables, as the current shifts rapidly and can cover low-lying paths.
Keep a safe distance from the cliff edges, which can be prone to erosion.
Attempting to swim near the lighthouse, as the tidal rip currents are extremely dangerous and unpredictable.
The private access road operates seasonally and may experience closures during extreme weather events; toll fees are mandatory for vehicle entry.
Keep dogs on a lead to protect local wildlife, and strictly follow the 'leave no trace' principle regarding coastal debris.
