Dalkey Island is a small island located off the coast of Dalkey, a picturesque town in County Dublin, Ireland. It covers approximately 22 acres and is known for its rugged beauty, featuring rocky cliffs and lush greenery. The island is home to a variety of wildlife, including seabirds and seals, making it a popular spot for nature enthusiasts. Visitors can reach Dalkey Island by boat, and it offers several walking trails that provide stunning views of the surrounding sea and coastline. The island also features historical sites, such as the remains of a 6th-century church and a Martello tower, which add to its charm and cultural significance.