险滩 | xiǎn tān | shoals / rapids / treacherous section of a river | |
滩 | tān | beach / shoal / rapids / CL:片[pian4] / classifier for liquids: pool, puddle | |
泷 | lóng | rapids / waterfall / torrential (rain) | |
泷船 | lóng chuán | boat or raft adapted to handle rapids / white-water raft |