Ynys Enlli, also known as Bardsey Island, is a small island located off the coast of Wales. It is part of the Llŷn Peninsula and is known for its rich history and natural beauty. The island is approximately 2.5 miles long and 1 mile wide, featuring rugged cliffs, sandy beaches, and diverse wildlife. Historically, Ynys Enlli has been an important site for Christian pilgrimage and was home to a monastery in the early Middle Ages. Today, it is a nature reserve, attracting visitors for its scenic landscapes and opportunities for birdwatching, particularly for species like the puffin and guillemot.