The ocean that surrounds the islands of Polynesia is the Pacific Ocean. Polynesia is a subregion of Oceania, comprising numerous islands scattered across this vast ocean. The Pacific Ocean is the largest and deepest ocean on Earth, significantly influencing the climate and ecology of the islands. Polynesian culture is rich in traditions, navigation skills, and biodiversity, with many islands featuring unique flora and fauna. The ocean's vastness has historically connected the islands through trade and communication, making it integral to Polynesian identity and heritage.