starts during the incoming (known as flood) tide, so that the crews are rowing with, not against, the fast stream. At the conclusion of the race, the boats come ashore at the shared shingle of the two boat clubs in Chiswick, a few metres west of Chiswick Bridge. Here, shortly after the race, the Boat Race trophy is presented to the winning crew. It is traditional for the winning side to throw their cox into the Thames to celebrate their achievement. Unofficial courses In addition, there were four unofficial boat races held during the Second World War away from London. None of those competing were awarded blues, and these races are not included in the official list: 1940, 1945 – Henley-on-Thames 1943 – Sandford-on-Thames 1944 – River Great Ouse, Ely: Littleport to Queen Adelaide Women's Boat Race courses During its early years (1927 to 1976 with several gaps) the Women's Boat Race alternated between The Isis in Oxford and the River Cam in Cambridge over a distance of about 1,000 yards. On two occasions, in 1929 and 1935, the race was held on the Tideway in London. Unlike the men's race, the official women's race continued in most years through the Second World War. From 1977 to 2014, the Women's Boat Race was usually held on a 2000-metre course as part of the Henley Boat Races. However in 2013 the entire Henley Boat Races were moved to Dorney Lake due to rough water at Henley. In 2021, the race was held on the River Great Ouse from Ely, Cambridgeshire along with the men's race. Media coverage The race first appeared in a short film of the 1895 race entitled "The Oxford and Cambridge University Boat Race", directed and produced by Birt Acres. Consisting of a single shot of around a minute, it was the first film to be commercially screened in the UK outside London. The event is now a British national institution, and is televised live each year. The women's race has received television coverage and grown in popularity since 2015, attracting a television audience of 4.8 million viewers that year. BBC Television first covered the men's race in 1938, the BBC having covered it on radio since 1927. For the 2005 to 2009 races, the BBC lost the television rights to ITV, after 66 years, but it returned to the corporation in 2010. Ethnographer Mark de Rond described