"Close-hauled" is a sailing term that describes a boat sailing as directly into the wind as possible. When a sailboat is close-hauled, its sails are trimmed in tightly, allowing the boat to move forward at an angle to the wind, typically around 30 to 45 degrees. This position maximizes the boat's speed and efficiency while minimizing the impact of the wind. In this sailing mode, the boat can make progress toward its destination, even when the wind is coming from that direction. The technique is essential for sailors, as it allows them to navigate effectively while maintaining control of their vessel, especially in competitive sailing scenarios like those seen in America's Cup races.