A shore-normal beach profile which traverses an undeveloped portion of the peninsula and crosses several accretionary spits was mapped for LIDAR validation. The beach profile extends from the waterline across the beach, foredunes, and the barrier flat. The day after the LIDAR mapping flight, researchers conducted a rapid-static GPS survey to measure the topography along this beach profile. The LIDAR profile overestimated the sand volume in the beach and dunes (240.3 m³) by 40% in comparison to the GPS profile (171.2 m³). This volume error is due to dense vegetation in the dune and interdune portion of the profile.

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