①Mt. Hon Ba, Khanh Hoa Province
1,570 m mountain massif located northwest of Nha Trang, the capital of Khanh Hoa Province.
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This area was developed by the bacteriologist Alexandre Yersin for the cultivation of cinchona, the source of quinine used to treat malaria. The fern grasslands remain as a legacy of that period (7 May 2014).
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By 2026, a large temple had been built on the former fern grasslands, and the surrounding landscape had changed considerably (4 May 2026).
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A memorial museum and guesthouse honoring Alexandre Yersin stand at the end of the road (4 May 2014).
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By the time of our survey visit in 2026, the paved road had been extended several kilometers farther into the mountains to provide access to the temple (5 May 2026).
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The summit area is covered with rich forest dominated by Quercus and Lithocarpus, although trails accessible on foot are limited (7 May 2026).
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