Thephosphorescenceonlyoccurswhenthemicroorganismsareagitated, suchaswhenthewatercrashesontotheshore, orsomeonestepsonthewetsand, or a paddlehitsthewaves.
VisitorstotheislandhavestatedtheyhavethemostluckseeingtheblueglowfromaboutJulytoFebruary, especiallyduring a newmoonsincethedarknessoftheskyhelpsintensifythelight.