The image depicts a diagram of a lake, specifically Gatun Lake, located in Honduras. The lake is shown with two large, rectangular lock gates on either side, which are likely used for navigation and water management. A boat is visible in the lake, suggesting that it is a functional body of water. The lake is surrounded by a green landscape, indicating a natural setting. The image also includes text that reads "Gatun Lake" and "Lock," which further emphasizes the lake's location and its use for lock gates.