Each full moon the Victoria Falls rain forest re-opens in the evening for special tours to witness the mystical magic of the lunar rainbow - spray and cloud permitting! The Victoria Falls are one of the few places on earth where this natural phenomenon occurs regularly and where it can be witnessed with ease. Many people visit the Falls without knowing of this natural phenomenon but it is one of the most impressive sights of Victoria Falls. Just like its day-time equivalent, the lunar rainbow or ‘moonbow’ is created as light is refracted by water particles in the air, ever-present from the spray of the Falls.