- The fauna observed in the caves are predominantly bats, as well as the golden gecko.
- The type of bat reported is the fulvous fruit bat (Rousettus leschenaultii) – a species which roosts in large caves, old buildings, dungeons and dark areas of old forts. This species has short and slender musculature with large, well developed eyes.
- They feed on flowers and fruits, particularly jamun, guava, silk, cotton and mango.The forests in the area are of semi-evergreen deciduous type. The flora in the cave consist of mosses and brown-to-green algae.
- Since many of the species found are endangered, mining operations are considered to be in violation of the Environmental Protection Act.
- The caves are located in the Araku Valley of the Ananthagiri hill range and is drained by the Gosthani River. At the entry, the cave measures up to 100 m (328.1 ft) horizontally and 75 m (246.1 ft) vertically.
- Stalagmite and Stalactite formations are found in the caves. The average annual temperature of Araku hills, where the caves are situated, is about 25 °C (77.0 °F). The average annual rainfall reported is 950 mm (3.1 ft) (mostly occurring during the northeast monsoon).
- The Gosthani river provides water supply to the Visakhapatnam city.
