Spike Island is an island of 103 acres in Cork Harbour, Ireland. Originally the site of a monastic settlement, the island is dominated by an 18th-century bastion fort now named Fort Mitchel.
The island's strategic location within the harbour meant it was used at times for defence and as a prison.
Due to a visit to Spike Island being at least a 4 hour experience, we only visit Spike Island on our Multiple Day Tours with prior arrangements. However, you can see Spike Island across the water on our days tours, but visit to the Island are only possible with pre-arranged tours.