During the day, a deep-lake diving competition is had between much of the youth to prepare for a tradition later at twilight. Young adults and teenagers, especially the young men who want to prove something, gather at the reefs and participate in a competition to gather the most bio-luminescent coralites (a type of softer [[coral]] that floats around harder reefs that provides light for fish). The [[Vela]] call them [[Monastrae]].