Harbour sights

I returned from the Isle of Wight today but will be going back in just over two weeks. 
The main blip is a 1940s lightship which sits within Portsmouth Harbour. It used to be called the Mary Mouse 2 when it patrolled the waters of the south coast. It is now a very nice restaurant.
The extra was the Royal Navy's world-renowned Submarine Escape Training Tank (SETT) which was part of HMS Dolphin. It was operational from 1954 but closed in 2020. It is located just outside Portsmouth Harbour but is a clear landmark. The operations transferred to the Clyde Submarine Base, Faslane in Scotland.