退潮的时候在海边礁石里会形成许多小小的潮汐池，这可真是受孩子们的喜爱(⑉°з°)-躲在石头下面的螃蟹，紧紧贴在石头上的石鳖，灵巧的寄居蟹，生命力顽强的跳跳鱼，还有一摸就会吐水的海葵。
等潮水褪去，暴露在空气里的海葵会紧紧闭合起来，变成一个鼓鼓的小包。
When ocean receds，many tidal pools were left behind. There are amazing sea creatures live there. Kids love obsetving tide pools. They can spend whole morning or afternoon to dig in a tidal pool. Crabs hiding under rocks，shells sting on rocks.
打开的海葵
闭合的海葵
