Upper row: Surveying on Walis Island. Lower row: Evidence of uplift on Tarawai. The photo on the left was taken at high tide. The chopper would not have had a place to land unless the islnd had been uplifted. The previous water level is believed to be at the base of the roots of the palm tree on the right. The photo on the right shows the interior swamp of Tarawai which had drained after the earthquake.