Singapore could well be the world's lightning rod. Sitting close to the Equator in the warm, humid tropics, the Republic is a magnet for thunderstorms, and has one of the highest occurrences of lightning activity in the world. On average, Singapore experiences 168 thunderstorm days per year, according to the National Environment Agency. This refers to the number of days in which thunder is heard over the island and gives an indication of lightning activity, since thunderstorms are associated with lightning. In this image, nature adds its ferocious beauty to the majestic Supertree Grove at Gardens by the Bay.