Jupiter Reef or Jupiter Breakers is a supposed reef

Reef

In nautical terminology, a reef is a rock, sandbar, or other feature lying beneath the surface of the water ....

 in the South Pacific

Pacific Ocean

The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...

 (south of French Tuamotu islands and east of New Zealand

New Zealand

New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...

); it appears to be a phantom reef

Phantom island

Phantom islands are islands that were believed to exist, and appeared on maps for a period of time during recorded history, but were later removed after they were proved to be nonexistent...

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Mr. Kinge, commanding the German barque Jupiter on a voyage between Newcastle, New South Wales

Newcastle, New South Wales

The Newcastle metropolitan area is the second most populated area in the Australian state of New South Wales and includes most of the Newcastle and Lake Macquarie Local Government Areas...

 and Tahiti

Tahiti

Tahiti is the largest island in the Windward group of French Polynesia, located in the archipelago of the Society Islands in the southern Pacific Ocean. It is the economic, cultural and political centre of French Polynesia. The island was formed from volcanic activity and is high and mountainous...

, reported having passed breakers during the night of December 3rd, 1878, in 36°37′S 150°15′W. The breakers were observed in two places, each of which had a diameter of about 30 yards, and appeared to be a quarter of a mile apart. No further intelligence has been obtained regarding this shoal.

Other nearby historically reported reefs which appear not to exist include Maria Theresa Reef

Maria Theresa Reef

The Maria-Theresa Reef is a supposed reef in the South Pacific ; it appears to be a phantom reef. It is also known as Tabor Island or Tabor Reef on French maps.-Reports:...

, Ernest Legouve Reef

Ernest Legouve Reef

Located in the South Pacific Ernest‑Legouvé Reef was reported in 1902 by the unnamed captain of the French ship "Ernest‑Legouvé". The reef was about 100 metres long and another reef was sighted near it...

, and Wachusett Reef

Wachusett Reef

Captain Lambert of the ship Wachusett reported that on June 4, 1899 he passed over a reef which appeared to be of coral formation in approximately latitude . The reef appeared to be about 500 feet wide. The bottom showed of a dark gray color with deep blue on both sides of the reef...

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