I would love to spend it eating cold crawfish and drinking shots of icy vodka, as I've heard they do in Norway on Midsummer Night.
Any Norwegians reading this? Can you confirm?
I heard this when working in New Orleans on a story about how the Chinese were trying to underprice and take over the crawfish market, an important industry in Louisiana, where crawfish are hugely popular. They're usually served hot there, boiled with spices and lemons and the occasional chunk of potato or corn.
But I can see eating them cold, with vodka, being a nice way to spend this long bright evening.