Khao Kheow Open Zoo - Wikipedia Khao Kheow Open Zoo (Thai: สวนสัตว์เปิดเขาเขียว, RTGS: Suan Sat Peot Khao Khiao) is a large zoo in Si Racha, Chonburi, Thailand [1] [2] It covers an area of about 2,000 acres and contains more than 8,000 animals from more than 300 species