OHAI Tonga is a non-governmental organization working to strengthen climate resilience in the Kingdom of Tonga and across the South Pacific. Their Tongan Whale Corridor initiative establishes a whale corridor through the Tongan Archipelago as part of a broader plan to regenerate ocean ecosystems from the Arctic to the Antarctic. Building on the 2024 "He Whakaputanga Moana" declaration granting whales legal personhood, OHAI combines legal innovation, ecological stewardship, and Indigenous leadership through a Marine Keystone Species Treaty, a regional protection center, and a pioneering "Whales Bank" to finance whale conservation, treating whales as ecosystem engineers vital to ocean health and Pacific cultural identity.