Yadua Tabu is a volcanic

Volcano

2. Bedrock3. Conduit 4. Base5. Sill6. Dike7. Layers of ash emitted by the volcano8. Flank| 9. Layers of lava emitted by the volcano10. Throat11. Parasitic cone12. Lava flow13. Vent14. Crater15...

 islet

Islet

An islet is a very small island.- Types :As suggested by its origin as islette, an Old French diminutive of "isle", use of the term implies small size, but little attention is given to drawing an upper limit on its applicability....

 in Fiji

Fiji

Fiji , officially the Republic of Fiji , is an island nation in Melanesia in the South Pacific Ocean about northeast of New Zealand's North Island...

, an outlier to the northern island of Vanua Levu

Vanua Levu

Vanua Levu , formerly known as Sandalwood Island, is the second largest island of Fiji. Located 64 kilometres to the north of the larger Viti Levu, the island has an area of 5,587.1 km² and a population of some 130,000.- Geography :...

, and immediately south of the larger island Yadua. Yadua Tabu covers an area of 0.7 square kilometres and has a maximum altitude

Altitude

Altitude or height is defined based on the context in which it is used . As a general definition, altitude is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object. The reference datum also often varies according to the context...

 of 100 meters. Yadua Tabu is a protected sanctuary for the Fiji Crested Iguana

Fiji Crested Iguana

The Fiji crested iguana is a critically endangered species of iguana native to some of the northwestern islands of the Fijiian archipelago, where it is found in dry forest.-Taxonomy and etymology:...

, Brachylophus vitiensis, and also contains a strand of dry littoral forestry, almost completely lost in the rest of Fiji. Landing here is strictly prohibited. In 1979, the Fiji government protected the island when the iguana population was discovered.