Milford Sound / Piopiotahi lies on the southwest coast of New Zealand’s South Island within Fiordland National Park. A fiord carved by glaciers during the last ice age and later flooded by the Tasman Sea, it is defined as much by weather as by geology. Low cloud, heavy rain, and brief breaks in light shape how the landscape is seen—and often how little of it is revealed. Here, a tour vessel moves through deep water beneath steep, forested walls, offering a sense of scale within a place that resists clarity.