A boat anchor is a device used to secure a boat in place by preventing it from drifting due to wind or current. Anchors are typically made of heavy materials like metal and come in various shapes, such as fluked, plow, or mushroom designs. The choice of anchor depends on the type of seabed and the size of the boat. When an anchor is deployed, it sinks to the bottom and digs into the seabed, creating resistance. This helps keep the boat stable and prevents it from moving. Proper anchoring techniques are essential for safety and to protect marine environments, such as coral reefs and seagrass beds.