On Earth Day, let's journey into Three-River-Source (Sanjiangyuan) National Park in Qinghai — where the headwaters of the Yangtze, Yellow, and Lancang rivers begin their long path. Here, a deep blue lake lies still like glass, broken only by drifting ice carried on the highland wind. Beyond it, snow-covered peaks rise in quiet permanence, framing a landscape both vast and untouched. A powerful reminder of how deeply life and water are intertwined — and why they must be protected.