Boundaries
![Map of Long Island - Kokomohua Marine Reserve showing its boundaries.](/contentassets/b3a792a3aa6847699764887976809951/long-island-marine-reserve.gif)
Long Island, Kokomohua Islands and a charted rock to the north-east, form a chain of islands and submerged reefs. The marine reserve extends 463 metres (a quarter of a nautical mile) offshore from the charted rock and from the high water mark around the islands.