What is "diversnight"

Diversnight is a gathering of Scuba divers and those interested in diving, and is made possible thanks to voluntary work and helpful sponsors. As the name implies, this event occurs after dark. The festival attempts to get as many divers as possible in the water at the same time, all over the world. The record from 2009 is 2749 divers on 218 dive sites in 20 countries.

Diversnight is well known for the cakes (especially a Norwegian Diversnight tradition) and prizes.