Phu Quoc is called the island of "99 mountains" because of its many sandstone chains gradually descending from the north to the south. The longest one is Ham Ninh which stretches for 30 km along the eastern edge with its highest peak called Mt. Chua (603m).
Phu Quoc has a monsoon sub-equatorial climate. There are two seasons in the year: the rainy season (October only) and the dry season (November to September). The average annual rainfall is 2,879 m and the average temperature is 27oC. Trips to Phu Quoc can be made all year round, but the best time is dry season when the sky is always sunny, clear and blue.