Beltane falls on the 1st of May and marks the midpoint in the Sun's progress between the vernal equinox and summer solstice. Beltane Fire Festival is held on the evening of April 30th on Calton Hill in Edinburgh, with celebrations continuing into the next day.
[description of the green man to go here - probably linking to the BFS website's Bestiary ]
[etc]
da-ba-dee, da-ba-daa
Some bumf about the basics of what the procession represents to go here, plus basic info on the changes throughout the years with specific details going on sub articles