1964: The players of H.M.S Ganges, UK

The Water Polo players of the "H.M.S Ganges" in 1965. "H.M.S. Ganges" was the shore training establishment for boy entrants into the Royal Navy from 1905 until 1976. The ship had previously anchored out in the harbour below, at Shotley Gate, on the east coast opposite Harwich.
Source: www.axfordsabode.org.uk/ganges.htm