Ship logs are official records maintained by a vessel's crew, documenting the ship's journey, activities, and conditions at sea. These logs typically include information such as the ship's position, weather conditions, and any significant events that occur during the voyage. They serve as a crucial tool for navigation and safety, helping to track the ship's progress and ensure compliance with maritime regulations. In addition to navigation, ship logs can also be used for legal purposes, such as investigating accidents or disputes. They may contain entries related to the ship's cargo, crew activities, and communications with other vessels or ports. Overall, ship logs are essential for maintaining a comprehensive account of a ship's operations and history.