The people of Oceania proper (Tahiti,east and north to Hawaii) are polynesians - lighter skin and finer features than Melanesian who live the the archipelagoes eg. Fiji, just north of Australia and New Zealand.
Oceania was populated by Polynesians sailing tremendous distances from island to island in outrigger boats without knowing exactly where they were going, or how to navigate theire other than by using clues the precieved from the wind and waves.