In addition to their vast knowledge of asterisms, wind, waves, and currents, sailors of the Duff and Reef Island groups make use of a unique phenomenon that has barely been documented, let alone witnessed by outside researchers.
A Preliminary Report by Dr. Marianne “Mimi” George Prepared for the National Science Foundation 2009
III. NAVIGATION AND PILOTING USING TE LAPA – FLASHES OF LIGHT THAT EMANATE FROM LAND Elaborations on previously conveyed and demonstrated data was given by Kaveia several other people who took voyages. A summary list of distinct characteristics of Te Lapa and a complex diagram that has comparative value for Marshallese diagrams is given here.