Sound of Seil is a car and passenger ferry, operated by Western Ferries on the upper Clyde between Gourock and Dunoon, Scotland.
Sound of Seil was built by Cammell Laird of Birkenhead. She was launched into the River Mersey by crane on 25 July 2013.[1] After fitting out, she entered service in October 2013, replacing the smaller and slower and .
Sound of Seil and her sister, were a development of the design of the earlier fleet members. They have a single car deck with 194 lane-metres between bow and stern ramps. There is a passenger lounge. The ferries use LED lighting and enhanced heat recovery.
Along with up to three other vessels, Sound of Seil operates Western Ferries Clyde service between McInroy's Point (Gourock) and Hunters Quay (Dunoon). This 2.2 nautical mile crossing allows vehicles to avoid the A83 "Rest and be thankful".