Old Jack's Boat

Rockpool Tales: The Snail Choir (3x7)

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Old Jack and Salty are getting ready to go on a picnic. Jack remembers a picnic he once had on the beach with Little Ernie and Little Sailor Sue. In the rockpool, Bertrum the Butterfish is trying to have an afternoon nap, but he keeps being disturbed. Which rockpooler keeps singing outside Bertrum's home in the Rocky Ridge?