跋山涉水

báshānshèshuǐ
to travel over land and water (idiom)

CEDICT

to travel afar under difficult conditions; to travel over land and water

Wiktionary

形容走長遠路途的艱苦。如：「他跋山涉水，歷盡艱辛，找尋失散多年的雙親。」也作「跋涉山川」、「跋山涉川」。

重編國語辭典

形容走長遠路途的艱苦

維基詞典

Entry Composition

1 跋 bá
  1. postscript
  2. to trek across mountains
2 山 shān (coll.) small bundle of straw for silkworms to spin cocoons on

classifier: 座
3 涉水 shèshuǐ
  1. (literary) to cross over a body of water in a shallow area; to wade
  2. to cross over a body of water in a shallow area; to wade