Thurso East (alternatively, the North Shore) is a coastline section of the Atlantic 0.5 miles (0.80 km) east of Thurso,[1] Caithness, northern Scotland.[2] It is situated at the mouth of the River Thurso, overlooked by the remains of Thurso Castle. The reef is made of layers of Caithness flagstone (the same stone that paves the Strand and much of Paris). It is Scotland's prime surfing venue on the north coast.