Last for the moment is the a water tower
Taken in very early bright morning light, this is a very different kind of water tower and the only one of its kind in the UK. This is the Submarine Escape Training Tower at HMS Dolphin, Fort Blockhouse, Gosport. It was designed 1950-1, operational 1954 and then the Tower was re-clad in 1995. It is part of a facility used for training submariners in methods of emergency escape from a disabled submarine. It is a tall cylinder tower filled with water with several entrances at varying depths each simulating an airlock in a submarine. It is a Grade II listed building as this is the only escape training tank in the country and one of only a handful internationally.
The Submarine Escape Training Tank (SETT) is a 100-foot (30 m) deep facility primarily operated to conduct training with submarine escape equipment. It includes a fresh, chlorinated water column with a single escape chamber (as fitted to some classes of RN submarines) mounted at the base, through which students can conduct a fully representative escape cycle from 100 feet (30 m), closely replicating actions which would be required if forced to abandon a distressed submarine from depth.
