People watch hot-air balloons during the Balloons Over Waikato Festival in Hamilton, New Zealand, on March 21, 2026. The festival is held here from March 21 to 28 this year. (Xinhua/Long Lei)

Hot-air balloons are pictured during the Balloons Over Waikato Festival in Hamilton, New Zealand, on March 21, 2026. The festival is held here from March 21 to 28 this year. (Xinhua/Long Lei)

People take photos and videos during the Balloons Over Waikato Festival in Hamilton, New Zealand, on March 21, 2026. The festival is held here from March 21 to 28 this year. (Xinhua/Long Lei)

Hot-air balloons are pictured during the Balloons Over Waikato Festival in Hamilton, New Zealand, on March 21, 2026. The festival is held here from March 21 to 28 this year. (Xinhua/Long Lei)

Hot-air balloons are pictured during the Balloons Over Waikato Festival in Hamilton, New Zealand, on March 21, 2026. The festival is held here from March 21 to 28 this year. (Xinhua/Long Lei)

Hot-air balloons are pictured during the Balloons Over Waikato Festival in Hamilton, New Zealand, on March 21, 2026. The festival is held here from March 21 to 28 this year. (Xinhua/Long Lei)