This is second standart geocache from Tuy Hoa.
Tuy Hòa is the coastal city and capital of Phu Yen province in South-Central Vietnam. The city has a total area of 107 square kilometres or 41 square miles and a population of 202,030 (in 2012). The city is located approximately midway between Nha Trang and Qui Nhon. The city is formulated mainly from alluvial of the downstream of Đà Rằng River. There are two mountains in the center of the city: Chóp Chài Mountain and Nhạn Mountain. There is a Champa Temple on the top of Nhạn Mountain.
i suggest to search during the daylight.