The Forty-Sixth Parallel South is a circle of latitude located 46 degrees south of the equator. It runs through several countries, including Argentina, Chile, and New Zealand. This parallel is significant in geography as it marks a line that is roughly halfway between the equator and the South Pole. In New Zealand, the Forty-Sixth Parallel South passes through the southern part of the South Island, influencing the region's climate and ecology. The area is known for its diverse landscapes, including mountains, lakes, and forests, which are shaped by its position along this latitude.