Five mermaids guide children on a whimsical singalong journey through the world's oceans, counting down from 5 to 0. Includes educational notes about mermaid legends, marine animals, and the five oceans, as well as a catchy song and video animation to reinforce STEM learning.

Barefoot Singalong是由英國獨立出版社Barefoot Books所出版的有聲書系列，每本書中皆附全彩插圖及改編的CD歌曲，其編曲悅耳、歌詞生動，搭配活潑的歌聲，非常適合和孩子一同合唱，或於遊戲時間作為背景音樂，同時學習簡易單字。出版社官方還提供免費youtube動畫搭上歌曲，購買前可先至官方頻道搶先試聽！

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