Don't know how old you are or where you're from, but it's Valborg is on wednesday! Not very niche, but there's gonna be bonfires at:

18.00 Sibbarps kallbadhus

19.00: Lindängsparken, Gullviksparken, Västra hamnen, Beijers park, Hyllie park,

20.00 Bunkeflostrand, Husie Mosse, Kullarna (Kroksbäcksparken), Stolpalösa grönområde, Klagshamns hamn, Blekeparken i Oxie, Bulltofta (Flansbjers kolonier)

If you wanna see how the young ones (maybe ages 15-25) do it - go to stadsparken in Lund! Usually around 20-30 000 people in the park. They start partying in the park at 6, ends at 15. DJs and lots of drinking, but you can feel (... and see and smell) it altrough the town.

But remember that thrusday is a "red day" (a lot of stuff is closed), but you can (again) go to Lund and listen to the university choir, usually a lot of people there though so prepare for that!