Milford Sound’s most famous falls are constantly on display. Yet their intensity of cascading water will vary depending on the season and weather. Following a torrential rain, the cliffs become a symphony of waterfalls. Such is the case with the Four Sisters. They are nearly identical ribbons of water tumbling in a parallel formation. Two of the siblings were missing on this day. But you can bet they returned soon. Milford Sound is one of the world’s wettest places with an average rainfall over 250 inches during 180 or more days.