Scene notes:

…with beach in foreground. Kauai is the furthest west island of the Hawaiian chain, and on the furthest western beaches, nature has been left to prevail; although trucks ride on this lesser known beach, it has a big enough area to accommodate the people enjoying the solitude and beauty that is reminiscent of prehistory. A rainbow stretches and begins its second bow as conditions are nearing perfect for this formation; the rain is at the right distance with the sun being at the correct angle in the sky near sunset. As the day grows older the rainbow is more likely to appear, until a period before sunset when it is very likely to encounter clouds on the horizon, as it was apparent in this scene to the observant during filming using two or three second intervals.