The image is a diagram illustrating the relationship between two lakes, Catun Lake and Nitrafluores Lake, and a lock. The diagram shows Catun Lake on the left side and Nitrafluores Lake on the right side. A boat is seen in the middle of the diagram, with Catun Lake to its left and Nitrafluores Lake to its right. The lock is located between the two lakes, with Catun Lake to the left and Nitrafluores Lake to the right. The lock appears to be a rectangular structure, and the boat is positioned inside it. The text in the image mentions "Nitrafluores Lake" and "4.3 USD," but the rest of the text is not clear.