你的远方朋友Kathy想从北京到你所在的海滨城市玩几天。根据示意图给她写一封信，告诉她怎样到你家。60个词左右。

提示词：Number 9 bus, not far from, sea(大海)

Dear Kathy,

……

                                                                                                                                           Yours,

                                                                                                                                            Sue 

被三个大洲围绕的大洋是（ ）