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Mystery Island Marine Reserve
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The Mystery Island Marine Reserve, known locally as Inyeug, is an uninhabited islet south of Aneityum, the southernmost inhabited point of Vanuatu. The island is surrounded by an extensive coral system that has been under protection since 1995 to preserve fish stocks and biodiversity. Geographically, Mystery Island is a flat sandy cay that was utilized by Allied forces as an auxiliary airstrip during World War II. Today, it serves as a model for sustainable tourism, with the reef offering snorkelers and divers an exceptional variety of soft corals, sea turtles, and reef sharks. The local community of Aneityum manages the reserve and has established strict regulations for the protection of the marine environment. The reserve also includes vital seagrass beds that serve as feeding grounds for dugongs. The island's isolation has helped ensure that its coral reefs remain among the healthiest in the region. Mystery Island is an example of how marine resource protection can secure the economic foundation for remote island communities.
- Location: Vanuatu
- Nearby: John Frum Village (Sulphur Bay) (87 km)
Best time to visit & climate
The most pleasant time to visit is Jul–Sep.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 27 | 27 | 27 | 27 | 25 | 24 | 23 | 23 | 23 | 24 | 25 | 26 |
| Rain mm | 155 | 126 | 191 | 172 | 97 | 87 | 75 | 59 | 53 | 88 | 83 | 112 |
📋 Practical info
Getting there
This uninhabited southern island is most often reached by boat from the nearby island of Aneityum. Cruise ships frequently dock here directly, while individual travelers usually arrive via small domestic flights to Aneityum.
Best season
A visit is possible year-round, as water temperatures are always pleasantly warm. However, the drier period from May to October often provides the best visibility for snorkeling in the coral reef.
Terrain & paths
The island is very flat, sandy, and can be easily circled on foot. There are no significant slopes, making it well-suited for relaxed walks along the white sandy beaches and palm groves.
What to bring
Crucial items include snorkeling gear, sunscreen, and water shoes for protection against sharp corals. Since the island is uninhabited, visitors should bring everything they need for the day if no ship is anchored nearby.
Parking
There are no roads or parking lots on Mystery Island, as it is completely car-free. Visitors land with small boats on the beach or use the small aircraft airstrip on the island for arrival.
Safety
When snorkeling, be mindful of currents outside the protected reef and avoid touching marine life. Sun protection is extremely important due to the strong reflection on the bright sand and water.
Time needed
Most visitors spend a full day here to swim, snorkel, and enjoy the tranquility. Often, the visit is combined with a stay on the main island of Aneityum.
Geography
Facts
- Mystery Island is completely uninhabited; workers commute daily from nearby Aneityum.
- The grass airstrip was originally built by US forces during World War II.
- The marine reserve was officially established and gazetted in 1995.
- The waters are a known habitat for the elusive dugong (sea cow).
- The low-lying island is susceptible to partial flooding during king tides.
- Surveys have documented over 150 species of tropical fish within the reserve.
Explore nearby
Notable places around
Route planner — Car & Motorhome
Where do you start? We build the route here, with stops and country notes along the way.
Vehicle
Only stops with (optional):
© OpenStreetMap contributors · OpenRouteService
Sights in the town Mystery Island Marine Reserve (1)
Sights nearby
Frequently asked questions
How do I get to Mystery Island?
Only by boat or as part of a cruise excursion.
Is diving allowed in the reserve?
Snorkeling is allowed, diving is subject to strict rules.
Are there accommodations on the island?
No, the island is uninhabited; day visitors return in the evening.
Is the water suitable for beginners?
Yes, the water is very shallow and convenient for beginners.
What do you need to bring?
Water, sun protection, and your own gear for the day.
Mystery Island Marine Reserve: where is it located?
Mystery Island Marine Reserve is located in Vanuatu.
Mystery Island Marine Reserve: when is the best time to visit?
The most pleasant time to visit is Jul, Sep.
Mystery Island Marine Reserve: why is it worth visiting?
The Mystery Island Marine Reserve, known locally as Inyeug, is an uninhabited islet south of Aneityum, the southernmost inhabited point of Vanuatu.
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