British lads of a certain age will recognise the title - a film about the British wartime submariners who as "frogmen" piloted midget submarines and tiny kayaks on dangerous missions to mine enemy battle ships.
This boat is traditional sail driven cockle dredger operating from Southend on the Thames Estuary. "Endeavour" was built in 1926. She sailed to Dunkirk in 1940 as one of the "little ships" which rescued more than 300,000 men of the British Army from the beaches of Dunkirk. She is still going strong and carries her Hero badge with pride. History of Endeavour