Motu Nui
The bigger island in the back is Motu Nui. Competitors start at top of the Rano Kau crater in the ceremonial Orongo village, would climb down the cliffs, swim through shark infested water over to the island and try to collect the first egg of the season. If you won you were the birdman for a year and won (and here come the weird part) a year in seclusion..