 Swallow Reef

Swallow Reef, known as Pulau Layang-Layang in Malaysia, Celerio in the Philippines, Đá Hoa Lau in Vietnam, and 燕子島 in China, is an oceanic atoll of the Spratly Islands administered by Malaysia, which is situated approximately northwest of Kota Kinabalu, Sabah.The atoll is about 7 km long and 2 km wide with a central lagoon.