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1. CUC PHUONG NATIONAL PARK, VIETNAM
Cuc Phuong National Park is   160 kilometres south west of Hanoi. It is the first of Vietnam′s nine national parks to be  , and it contains over 200 square kilometres of  . Tourists go there to study butterflies, visit caves, hike   and look at the 1,000-year-old tree. The best time to visit the park is   the dry season, from October to April, when the rainy season is over.