黃金瀑布位於新北市瑞芳區的水湳洞金水公路旁。金瓜石一帶早期為礦區，因為充沛的雨水經礦區表層裂隙滲入礦場，與黃鐵礦及硫砷銅礦接觸後，產生氧化還原及鐵催化作用，形成酸礦水。把因地勢落差造成的瀑布，著上一層金黃略帶橘的色彩，而形成「黃金瀑布」，成為金瓜石地區的著名景觀。
在瀑布一旁有大金剛山，也可以遠眺黃藍色相隔的「陰陽海」美景。「陰陽海」是由含有鐵離子的溪水出海後，接觸海水所產生氧化反應，形成偏黃色，與外海方向正常海水的藍顏色形成鮮明對比而得名。
黃金瀑布的酸性礦山排水是強酸，對皮膚有腐蝕性，水中又含有毒性的砷，因此周圍立有標語警告遊客切勿接觸岩石、戲水及飲用。
Golden Waterfall is located along Jinshui Highway in Shuinandong, Ruifang District, New Taipei City. The Jinguashi area was once a major mining region. Abundant rainfall seeps through cracks in the ground and interacts with pyrite and arsenic-sulfur copper ore, triggering oxidation-reduction reactions that produce iron-catalyzed acidic mineral water. The steep drop in elevation causes the water to cascade down, giving the waterfall a golden hue with hints of orange—thus forming the Golden Waterfall, a renowned scenic spot in Jinguashi.
Nearby, Big Vajra Mountain (大金剛山) offers breathtaking views of the striking Yin Yang Sea, where yellow and blue waters meet. This phenomenon is caused by the oxidation reaction between iron-rich stream water and seawater, creating a yellowish tint that contrasts vividly with the deep blue of the ocean.
The acid mine drainage is highly acidic and corrosive to the skin, and the water contains toxic arsenic. As a result, signs are posted around the area warning tourists not to touch the rocks, play in the water, or drink the water.
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