The Nalukataq festival occurrs every June in the US city of Barrow, Alaska.
The festival celebrates the end of the whaling season for the Inupiat Eskimos of Northern Alaska.
Due to the city's position within the arctic circle, the festival enjoys 24 hour daylight, and requires no artificial lighting whatsoever.
Members of the community enjoy the distribution of whale meat and blubber before dancing, storytelling and feasting is enjoyed by all.
Among the celebrations is the tradition of blanket tossing, where the community spread themselves around a huge blanket, which they use to throw the whaling crews high into the air.
Dates and information on how to attend this event can be found at:

man being thrown in the air from a blanet as part of the the 'Nalukataq' festival