Music By The Sunny River . Although Londoners missed the sun , weekend holidaymakers along the upper reaches of the river were more fortunate . River parties , most of the members in bathing costumes , lounged in the sun or held impromptu sport meetings by the river . Photo shows : A cool weekend party spends the sunny Sunday afternoon with gramophones along the river bank between Sunbury and Walton . 5 Jul 1936 *** Local Caption ***