Phu Quoc, or Phú Quốc as it’s written in Vietnamese, refers to the island’s diverse natural environment. ‘Phú’ meaning ‘fertile land’ and ‘Quốc’ meaning nation. Its diversity is one of the reasons the island has three distinct nicknames: Pearl Island (Đảo Ngọc), due to the abundance of pearls hidden in oysters off its coastline, which have historically been a source of prized treasure for able-bodied freedivers. The Island of 99 Mountains, because of the multitude of mountainous terrain to be explored, from the north of the island right the way down to the south. Emerald Island, due to the island’s lush tropical jungle that’s teeming with spectacular wildlife and adventure.