When a curious little crab tip-taps out of her rock pool to explore the big blue sea, she discovers a world full of wonderful creatures. But after she's counted everything from one noisy seagull and two sleepy sea lions to nine silent sharks at the bottom of the sea, the little crab soon realizes that her very own rock pool is the most amazing place of all. And so she tip-taps happily home . . closely followed by her ten baby crabs.