FILE - This undated file photo provided by Ron Dahlquist for the 

FILE - This undated file photo provided by Ron Dahlquist for the Maui Visitors Bureau shows Hamoa Beach in Maui, Hawaii. Hamoa Beach is fourth on the 2013 list of Top 10 Beaches produced annually by coastal expert Stephen P. Leatherman, also known as "Dr. Beach," director of Florida International University's Laboratory for Coastal Research.   (AP Photo/MVB, Ron Dahlquist)   MANDATORY CREDIT: MVB/RON DAHLQUIST.
Associated Press
FILE - This undated file photo provided by Ron Dahlquist for the Maui Visitors Bureau shows Hamoa Beach in Maui, Hawaii. Hamoa Beach is fourth on the 2013 list of Top 10 Beaches produced annually by coastal expert Stephen P. Leatherman, also known as "Dr. Beach," director of Florida International University's Laboratory for Coastal Research. (AP Photo/MVB, Ron Dahlquist) MANDATORY CREDIT: MVB/RON DAHLQUIST.
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