Culture Night is coming up this Saturday, and Strætó bs. is graciously offering free bus service.
Strætó announced that in addition to the free service during the day, the night brings other changes. At 22:30, the regular bus service will be closed, and in its place, buses will depart from Hlemmur and BSÍ for the suburbs. This service will continue until 00:30, when the fireworks end.
A schedule of Culture Night bus service can be downloaded here, and the night service schedule can be downloaded here. Both schedules are in .pdf format.