Piritoki Reef is a significant offshore reef system located on the west coast of New Zealand's North Island, south of Raglan and Kawhia, near Tirua Point. It rises sharply from deep water, creating a prominent underwater structure that attracts baitfish and pelagic predators. The reef is known for its turbulent seas and sharp rocks, posing navigational hazards but also creating a rich marine environment. This area is a renowned destination for offshore big game fishing, particularly for striped marlin, and is a focal point for trailer boats operating out of nearby harbors.