The image is a diagram illustrating the relationship between Gatun Lake and Miraflores Lake in the context of a lock system. The diagram shows two lakes, Gatun Lake on the left and Miraflores Lake on the right. There is a lock in the middle, which connects the two lakes. A boat is shown in the lock, indicating that it is connected to both lakes. The lock is labeled as "Lock" and is located between the two lakes. The image also includes text in Vietnamese, which translates to "Gatun Lake" and "Miraflores Lake."