Blue sea， golden beach， colorful undersea world， always let our hearts full of longing; childhood dream has always been a light small foot， carrying a smallplastic barrel， step on the soft sand， looking for a single and a beautiful shell;also once fantasized oneself is a mermaid in the sea， in their feelings and dreams to swim. After growing up， only to find that the sea is so far， far away in the far-off regions， dream is so miles away