Thousands have gathered in Helston, Cornwall, for the annual Flora Day festival.
The event marks the end of winter and coming of summer, and has been celebrated for hundreds of years.
The celebration has remained virtually unchanged for more than 200 years, with about 20,000 to 25,000 attending each year.
During the day thousands of formally dressed dancers will promenade their way in and out of homes and shops which have been decorated with spring flowers, following the beat from a brass band.
Nigel Pascoe, chair of the Flora Day Association, said it was one of the "most important days of the year" for Helston.
"The weather is pretty good," he added.
"We've got over 180 couples dancing in the Midday Dance. There are 1,100 children dancing and the Early Morning and Evening Dance is filled to capacity."