Thorn Island with its Napoleonic fort just off Angle. The island is dominated by the fort that was built to defend Pembroke Dock and Milford Haven from the French Navy. The area is popular with divers, who investigate the wrecks near the island. The ship Loch Shiel, which was carrying thousands of cases of whisky, ran into rocks off the island in the late 19th Century. The fort was converted into a hotel in 1947. It as been sold on a few times since then The new owner wants to use it commercially.