Prompt: We came to a quiet lake, clear and blue, reflecting the surrounding mountains and sky. There are a few white clouds floating in the sky, like soft marshmallows. There is a big tree by the lake, which is full of branches and leaves, and forms a cool shade. In the hot summer, this is a good place to spend the summer. You can sit by the lake, enjoy the beautiful scenery, feel the cool breeze, let the mood become calm and comfortable. Such a landscape can heal people's minds and make them forget troubles and stress.