Emily loves wind and waves! There is so much to discover at the beach. Emily particularly enjoys searching for shells and stones or flying her kite. But what is that mountain right behind the beach? Cows, sheep, and seagulls tell the most wonderful stories about the meadow by the sea. Is it all just sailor's yarn? For Emily, a great adventure begins. A storm is brewing, and the water is rising. Luckily, an old friend is there to help. Over a cup of tea in the lighthouse, Emily learns all about dikes and life by and with the sea.