百川归海

all things tend in one direction (idiom)

surname Hai

ocean / sea / CL:個|个[ge4],片[pian4] / great number of people or things / (dialect) numerous

surname Gui

to return / to go back to / to give back to / (of a responsibility) to be taken care of by / to belong to / to gather together / (used between two identical verbs) despite / to marry (of a woman) (old) / division on the abacus with a one-digit divisor

hundred / numerous / all kinds of

abbr. for Sichuan Province 四川[Si4 chuan1] in southwest China

(bound form) river / creek / plain / an area of level country

rivers