E51MWA Team will be active from Manihiki Atoll, IOTA OC - 014, 9 - 20 October 2025. Apart from Manihiki Atoll, the only other suppliers of this valuable gem to the world market are the islands of French Polynesia. Manihiki Atoll, Cook Islands. Manihiki Atoll. Where is Manihiki Atoll located.