冲浪 

Pinyin: chōnglàng 
Meaning：Surf; surfing; surf riding
Sentence: This beach is good for swimming but bad for surfing 这个海滨适於游泳而不适於冲浪。 

More: 

冲：

Pinyin: chōng
Meaning: wash
Radical: 冫
Stokes: 6
Traditional: 衝
Common words/Phrase:
冲荡chōngdàng 【wash away】
大冲dàchōng 【favourable opposition】
比冲bǐchōng 【specific impulse】
冲茶chōngchá 【make tea】

浪：

Pinyin: làng
Meaning: weight; repeat; duplicate
Radical: 氵
Stokes: 10
Traditional: 浪
Common words/Phrase: 
波浪 [bō làng] 【wave; swell; billow; breaker】
放浪 [fang làng] 【unrestrained; profligate】
浪漫 [làng màn] 【romance】
浪费 [làng fèi] 【to waste】
浪潮 [làng cháo] 【tides】