Layn Marlow: Noah's Seal [2021] hardback

Noah waits all day for Nana's boat to be ready so that they can go seal spotting. He waits and waits, and eventually takes matters into his own hands, building his very own seal out of sand-it's almost as good as the real thing. But it isn't long before a storm whips up, his seal is washed away, and Nana packs up ready to leave. Noah loses all hope that he'll ever spot a real-life seal, until something special happens.