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Orona Atoll Reserve
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Orona Atoll, historically called Hull Island, is a quintessential Pacific atoll characterized by a shallow, spirited lagoon connected to the surrounding ocean by over a hundred narrow channels. As a key component of the Phoenix Islands Protected Area (PIPA), it showcases a remarkably resilient marine ecosystem. The atoll is a vital sanctuary for the endangered Hawksbill turtle and also supports significant nesting populations of Green sea turtles. Its lagoon is home to rare giant clams (Tridacna), while the outer reefs boast some of the highest densities of reef sharks in the world. Although Orona was inhabited during parts of the 19th and 20th centuries for coconut plantation work, it is now entirely wild. The regeneration of its native forests and the recovery of its wildlife since human departure make it a prime example of island restoration and a critical stronghold for Central Pacific biodiversity.
Best time to visit & climate
The most pleasant time to visit is Sep–Nov.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Rain mm | 129 | 168 | 126 | 115 | 87 | 86 | 65 | 69 | 42 | 43 | 52 | 103 |
📋 Practical info
Best season
Best visited during the dry season from May to October when the lagoon is calm and reef sharks are more active. The wet season from November to April brings stronger currents and reduced visibility.
Best time of day
Early morning provides the calmest lagoon conditions for spotting reef sharks near channels. Late afternoon also gives good opportunities as sharks become more active before dusk.
Etiquette
Do not feed or chase reef sharks; observe from a safe distance. Avoid touching corals and do not collect any marine specimens. Respect the protected status of the reserve at all times.
What to bring
Snorkel gear and a wetsuit are essential for spending time in the lagoon channels. Bring polarized sunglasses to reduce glare and improve shark spotting. Water shoes protect feet from coral.
Getting there
Orona Atoll is reachable by boat from Tarawa or as part of an expedition cruise. Permits are required; book through Kiribati-based tour operators who specialize in the Phoenix Islands.
What to expect
Reef sharks are common but can be shy; remain still and quiet in the water to increase sightings. Do not expect large numbers; enjoy the diverse marine life the lagoon has.
Geography
Facts
- Land area 3.8 km²
- Lagoon 30 km²
- Part of PIPA since 2006
- Red-footed booby
- Coconut palm forests
- Controlled tourism
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Notable places around
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Sights in the town Orona Atoll Reserve (1)
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Frequently asked questions
Is Orona inhabited?
The atoll is currently uninhabited but was formerly used for copra plantations.
What does the landscape look like?
A shallow lagoon surrounded by coral islets with coconut palms and forest.
What can you do there?
Mainly nature observation and diving in extremely clear water.
How large is the lagoon?
The lagoon is about 30 square kilometers and very rich in fish.
Are there sea turtles there?
Yes, the atoll is an important sanctuary for endangered sea turtles.
Orona Atoll Reserve: where is it located?
Orona Atoll Reserve is located in Kiribati.
Orona Atoll Reserve: when is the best time to visit?
The most pleasant time to visit is Sep, Nov.
Orona Atoll Reserve: why is it worth visiting?
Orona Atoll, historically called Hull Island, is a quintessential Pacific atoll characterized by a shallow, spirited lagoon connected to the surrounding ocean by over a hundred narrow channels.
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History & landmarks
Orona Island
Orona Island, also known as Hull Island, is a large atoll with a shallow lagoon and numerous passes that allow constant water exchange.
Manra Rim
Manra is a nearly closed atoll in the Phoenix Islands.
Manra Island
Manra Island is a circular atoll in the Phoenix group, featuring a hypersaline lagoon that is completely cut off from the sea.
Kanton Island
Kanton is the only inhabited atoll in the Phoenix Islands, boasting a massive and nearly completely enclosed lagoon.
Nikumaroro Atoll
This elongated coral atoll has a distinct reef rim and a central lagoon.
Arorae Navigational Stones
A series of historical stones (Te Kanawa) used by early inhabitants for celestial and maritime navigation between islands.
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Beru Traditional Maneaba
A historical meeting house on Beru Island, considered the spiritual and political center of Kiribati culture.
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Te Animane Maneaba
One of the largest and most historically significant traditional meeting houses located on Tabiteuea North.
Nature
Phoenix Islands Protected Area
This vast marine protected area encompasses eight atolls and two submerged reefs.
Manra Island Sanctuary
Manra is a nearly circular atoll with a saline lagoon that has no connection to the sea.
Birnie Bird Reserve
This reserve on Birnie Island provides a critical habitat for endangered seabirds in the central Pacific Ocean.
Birnie Island
Birnie Island is a very small, uninhabited atoll in the Phoenix Islands, almost entirely dominated by seabird populations.
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Rawaki, formerly known as Phoenix Island, is an important nesting site for up to 15 different seabird species.
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Enderbury Island
Enderbury Island is a key nature reserve in the Phoenix Islands, famous as one of the most significant nesting sites for green sea turtles.
