Taklong Island National Marine Reserve spans 1,143.45 ha. covering 46 islands and islets.
The 960.45 marine areas include 172 ha of mangroves with 25 species, 56 ha of seagrasses with 6 species, and 124 ha. of fringing corals composed of 144 species of hard corals and 17 species of soft corals.
As of January 2016, there are 59 bird species, 6 mammal species, and 9 reptile species found at TINMR. These include Philippine duck, Reticulated phyton, Tabon bird, little bronze cuckoo, white-collared kingfisher, Philippine hawk cuckoo, Philippine night jar, Philippine hawk owl, whimbrel, flying foxes, Paradise flying tree snake, Black-bearded tomb bat, among others.
Also found in the reserve is a rare species of shellfish known as “embao”. It thrives in clean waters and is rich in iron and iodine.