Spike Island is a notable island located in Cork Harbour, Ireland. It is renowned for its historical and cultural significance, as well as its natural beauty. The island has a diverse history, serving various purposes over the centuries.

One of the most notable historical aspects of Spike Island is its use as a fortress and military prison. It housed a fortress that dates back to the 18th century and was later repurposed as a convict depot and prison during the 19th century. The prison was known for its strict conditions and harsh treatment of inmates.

In recent times, Spike Island has been redeveloped into a popular tourist attraction and heritage site. Visitors can take guided tours to explore the island's history, including its military and penal past. The tours provide insights into the lives of prisoners and the island's strategic importance throughout different eras.

The island also offers scenic views, walking trails, museums, and exhibitions, making it an intriguing destination for both history enthusiasts and those seeking to appreciate the natural beauty of Ireland's coastline.