The List of shipwrecks of the Seven Stones Reef lists the ships which sank on or near the reef, including ships that sustained a damaged hull, which were later refloated and repaired. The Seven Stones Reef is a rocky reef nearly 15 miles (24 km) to the west-north-west (WNW) of Land's End, Cornwall and 7 miles (11 km) east-north-east (ENE) of the Isles of Scilly. The reef consists of two groups of rocks and is nearly 2 miles (3.2 km) long and 1 mile (1.6 km) in breadth. They rise out of deep water and are a navigational hazard for shipping with seventy-one named wrecks and an estimated two hundred shipwrecks overall. The most infamous is the Torrey Canyon in 1967, which was at that time the world's costliest shipping disaster, and to date, still the worst oil spill on the coast of the Unite