Location within the Philippines
|Area||174 ha (430 acres)|
The island's topography includes coastal plains, mangrove swamps, lagoons and semi-rounded hills. Its coastal plain constitutes about 9.7% while semi-rounded hills constitute the biggest portion of the island covering about 14.4% of the total area. The mangrove forest has an area of about 10.1 hectares or 580.5% of the island. The highest point was measured at 55 metres (180 feet) above sea level.
Within the small island are the sitios of Candionesio, Carnaza, Daanbaryo, Linao, Liog‑liog and Pantao.
The dominant upland vegetation is ipil-ipil (Leucaena leucocephala), which covered most of the slopes. Agricultural crops like coconuts, cassava, banana, sugarcane, corn and breadfruit, among others, are present in some areas.
On a paper report on the survey conducted on the island on 16–20 July 1990. A total of 18 species of birds representing 7 orders and 15 families have been identified and reported. The most common species observed were glossy swiftlets (Collocalia esculenta), white-collared kingfishers (Halcyon chloris), pied trillers (Lalage nigra), black-naped orioles (Oriolus chinensis), Philippine mapgie robins (Copsychus saularis), Malaysia fantails (Rhipidura javanica), white-breasted woodswallows (Artamus leucorhynchus), glossy starlings (Aplonis panayensis), yellow-breasted sunbirds (Nectarinia jugularis) and Eurasian tree sparrows (Passer montanus). For the rest of the species either only one or two individuals were seen or only either calls were heard.
The islanders reported that the tabon bird (dusky megapode, Megapodius freycinet) used to be numerous in Carnaza Island.
A total of 36 species belonging to 19 families of gastropods have been listed. Further study is needed to make a complete listing.
- Mapalo, Amuerfino M. (January–June 1991), "Notes on the Avifauna of Carnaza Island, Cebu, Philippines", Ecosystems Research Digest, 1 (1): 30–34