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change takes place along the beach, increasing from north to south, due to the 
location of profile lines relative to structures; and offshore linear shoals.. 
Detailed closely spaced profile lines taken over a year in a groin field near 
the north end of the island indicate littoral transport directions shift from 
north to south. Evidence of a littoral transport node near the north end of 
the groin field has been found. Net transport south of the node is toward the 
|south, but the rate could not be established due to lack of adequate wave data. 
Profile line variability within groin cells shows that single profile lines 
are not sufficient to determine the net change within a cell. The design of 
future beach monitoring studies should consider coastal structures, offshore 
bathymetry, the method of analysis, and the scales of processes under study. 
A coastal storm in November 1968 moved the MSL back as much as 22 meters; 
‘Thowever, the beach recovered without artificial measures. The offshore bathym— 
etry shows a series of shoreface-connected linear shoals at several locations 
along the island. Limited data show that these have remained stable and that 
most beach variability takes place in water shallower than 3 meters. 
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