A famous Chinese saying used to praise breathtaking natural scenery, specifically crowning the limestone karsts and river views of Guilin as unmatched anywhere else in the world.
The phrase elevates Guilin (桂林 Guìlín) and its scenery (山水 shānshuǐ / landscape) to the absolute highest tier, declaring that it is superior to every other place (甲天下 jiǎ tiānxià / best in the world) on earth.
The term 甲 jiǎ historically denotes "first" or "number one" in traditional Chinese ranking systems, making the comparison definitive and absolute.
A classic, concise literary construction typical of Chinese idioms and descriptive aphorisms:
This four-character-like structural density packs a superlative statement into a compact, memorable rhythm.