One of the top five wreck dives in the world, the Thistlegorm is a 129m-long cargo ship built in Sunderland, England, which was sunk during World War II. The ship had been on its way to Alexandria carrying supplies to restock the British army there; its cargo of armaments and vehicles including Bren gun carriers, motorbikes, Bedford trucks and jeeps can all be seen on dives within the wreck. Depth: 17m to 30m. Rating: intermediate to advanced. Access: boat.