The early Australians may have painted on the walls of rock shelters and cliff faces at least 30,000 years ago, and maybe as much as 60,000 years ago.

早期澳大利亚人可能在至少3万年前，也可能在长达6万年以前，就在岩洞和悬崖的壁上作画了。

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Cliff faces, mostly facing left but still partly visible from above, appear dramatically red.

大部分峡谷面向左边，不过部分仍然可以从上面看见，呈现醒目的红色。

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Dubbed the rock star of the climbing world, Alex Honnold travels the world fearlessly scaling cliff faces no man has ever climbed before - without even using a rope.

Alex Honnold被称为攀岩世界中的摇滚巨星，他云游世界各地，攀登上了了许多无人能及的悬崖峭壁，甚至是在不借助绳索的情况下。

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Overhead, gulls and gannets ride the thermals or roost in noisy colonies on the cliff faces.

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Lauterbrunnen, with its high cliff faces, is one of the world's most popular areas for expert base jumpers.

BBC: Mother's grief at base jump death of Gary Harbird

Where large boulders, vertiginous cliff faces and impenetrable gorges force the path to divert, it follows the shortest route around the obstacle back to the next breathtaking vista.

WSJ: Trekking in Otter Space