Hundreds of metres of tunnels discovered under Spike Island

John Crotty, who manages the site for Cork County Council, revealed that the tunnels are under Bastion No 3, known as the old punishment block.
He said they are also aware of a 16th-century tunnel on the island which was used by smugglers, but have sealed the entrance to it at present because it would be unsafe to go in there until it is properly surveyed.