https://www.google.co.kr/search?biw=1536&bih=747&tbm=isch&sa=1&ei=iJspXZelAuutmAWPqJ7QDw&q=sea+of+japan&oq=sea+of+&gs_l=img.3.0.0l10.287154.293984..295472...4.0..0.149.1506.5j10......0....1..gws-wiz-img.....0..35i39j0i10.VXDVWRHm3do#imgrc=bCoASem-qeQtOM: