Rangiroa or Te Kokōta, is the largest atoll in the Tuamotus, and one of the largest in the world. It is part of the Palliser group. The nearest atoll is Tikehau, 12 km to the west. It is about 355 km northeast of Tahiti.
Rangiroa is home to about 2,500 people on almost 80 km2. The chief town is Avatoru, in the atoll's northwest.
Wikipedia https://en.wikipedia.org/wiki/Rangiroa
Coordinates -15°9'14.316" N -147°34'18.568" E