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Yves Merlet Integral Reserve
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The Yves Merlet Integral Reserve is the highest level of environmental protection in New Caledonia, spanning 167 square kilometers of pristine marine environment. Located between the main island of Grande Terre and the Isle of Pines, it has been strictly managed since 1970 to serve as a baseline for marine ecosystems. The 'integral' status means that all human entry is prohibited, with only rare, highly regulated exceptions for scientific monitoring. This lack of human interference allows the coral reefs and seagrass beds to thrive in their natural state, providing an undisturbed habitat for endangered species such as dugongs, green sea turtles, and various migratory seabirds. Fishing, anchoring, and transit are entirely banned, ensuring that the biodiversity remains at peak levels. The reserve acts as a biological powerhouse, where species can reproduce freely, helping to restock adjacent waters and maintaining the overall ecological balance of the South Pacific's coral sea.
- Location: New Caledonia
- Nearby: Port-Boisé (38 km)
Best time to visit & climate
The most pleasant time to visit is Aug–Oct.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 26 | 26 | 26 | 25 | 23 | 22 | 21 | 21 | 21 | 22 | 23 | 25 |
| Rain mm | 120 | 104 | 165 | 113 | 97 | 79 | 73 | 65 | 46 | 49 | 68 | 79 |
📋 Practical info
Geography
Facts
- Establishment of the reserve in 1970
- Total area: approx. 172 square kilometers
- Status as an Integral Nature Reserve (Category Ia)
- Access prohibited for tourists and fishers
- Monitoring of coral regeneration
- Important reference point for scientific studies
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.
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Sights nearby
Frequently asked questions
Can the reserve be visited?
Why is the area protected?
Are diving tours possible?
What is in the surroundings?
How to protect the reef when visiting?
Yves Merlet Integral Reserve: where is it located?
Yves Merlet Integral Reserve: when is the best time to visit?
Yves Merlet Integral Reserve: why is it worth visiting?























