Walpurgis is one of the main holidays during the year in both Sweden and Finland, alongside of Christmas and Midsummer. The forms of celebration in Sweden vary in different parts of the country and between different cities.
One of the main traditions in Sweden is to light large bonfires, a custom which is most firmly established in Svealand, and which began in Uppland during the 18th century. An older tradition from Southern Sweden was for the younger people to collect greens and branches from the woods at twilight, which were used to adorn the houses of the village. The expected reward for this task to be paid in eggs.
The tradition which is most spread throughout the country is probably singing songs of spring.
Most of the songs are from the 19th century and were spread by the students' spring festivities. The strongest and most traditional spring festivities are also found in the old university cities, like Uppsala and Lund where both current and graduated students gather at events that take up most of the day from early morning to late night on April 30, or "sista april" ("The last day of April") as many people call it.
There are also newer student traditions like the carnival parade, The Cortège, which has been held since 1909 by the students at Chalmers in Gothenburg. In Sweden, Valborg is especially notorious because of the excessive amounts of alcohol people consume on that very day.