码头镇位于涿州市东北侧，北与北京市房山区琉璃河镇接壤。北拒马河自西南入境，向东蜿蜒流经境内南部边缘。琉璃河、小清河自境内北部、东北部入境，三条河流于镇域东南角交汇，流向东南 。

zaishuibianjingdianyouwanlaojianquandiyi，qingwuxuanzeweikaifahuowurenweihudechangsuoyouyongxishui。canjiachengzuoshuishangkuaitingdengyoulanxiangmushiqingquanchengchuanhaojiushengyi，zaishuibianpaizhaoshiwumaoxiansheshui。在(zai)水(shui)边(bian)景(jing)点(dian)游(you)玩(wan)牢(lao)记(ji)安(an)全(quan)第(di)一(yi)，(，)请(qing)勿(wu)选(xuan)择(ze)未(wei)开(kai)发(fa)或(huo)无(wu)人(ren)维(wei)护(hu)的(de)场(chang)所(suo)游(you)泳(yong)戏(xi)水(shui)。(。)参(can)加(jia)乘(cheng)坐(zuo)水(shui)上(shang)快(kuai)艇(ting)等(deng)游(you)览(lan)项(xiang)目(mu)时(shi)请(qing)全(quan)程(cheng)穿(chuan)好(hao)救(jiu)生(sheng)衣(yi)，(，)在(zai)水(shui)边(bian)拍(pai)照(zhao)时(shi)勿(wu)冒(mao)险(xian)涉(she)水(shui)。(。)