Ryfylke Tunnel is a subsea tunnel part of the Ryfast tunnel systek in Rogaland county, Norway. It is 14.3 km (8.9 miles) long and runs from Hundvåg to just south of Tau in Strand municipality. It is the world's longest and deepest subsea tunnel at 292 meters (948 ft) below sea level. If you are traveling in Norway and headed to Pulpit Rock from Stavanger, you will likely take this tunnel to get to the hike.