Yadua Tabu (pronounced [janˈdua ˈtambu]) is a volcanic islet in Fiji, an outlier to the northern island of Vanua Levu, and immediately south of the larger island Yadua. Yadua Tabu covers an area of 0.7 square kilometres and has a maximum altitude of 100 meters. Yadua Tabu is a protected sanctuary for the Fiji Crested Iguana, Brachylophus vitiensis, and also contains a strand of dry littoral forestry, almost completely lost in the rest of Fiji. Landing here is strictly prohibited.