Pùbù cóng shān shàng qīngxiè ér xià, fēicháng zhuàngguān.
The waterfall cascades down the mountain — truly spectacular.
Tips
usage
壮观 describes visually impressive, large-scale sights — natural wonders, grand architecture, massive events. It's not used for small or delicate beauty (use 精美 or 美丽 instead).