Visitors carrying flashlights have to cover them with red cellophane, as "red is a warm color and fireflies don't notice it, so it won't disturb them," Chen Zhonghao explains.
遊客拿在手上照明的手電筒，也得依規定罩上紅色玻璃紙，「紅色屬於暖光系，螢火蟲看不到，也就不會受到干擾，」陳重豪解釋。