Saint Stupid's Day Parade
From Infogalactic: the planetary knowledge core
The Saint Stupid's Day Parade is an annual parade in San Francisco on April 1. It was founded by Ed Holmes in the late 1970s. If April 1 falls on a weekday, the parade starts at the foot of Market Street and follows a route through the financial district. If April 1 falls on a weekend, the parade starts at the Transamerica Pyramid, proceeds up Columbus Street and ends at Washington Square. The parade begins at noon.