The Mysterious Hat and the Great Water Mission

On a clear Monday, the sun rose earlier than usual and dragged itself over the roof of the little house. Inside, Tadzio was waking up - a boy with a storm of bright hair and pockets always stuffed with pebbles and sticks, and... a head full of questions. Tadzio was ready for a day full of mischief and splashing. He had already prepared his **special bucket with a rainbow handle**, which he claimed "splashes better than ordinary ones!". But when he went down to the backyard, he saw something strange. In the middle of the garden stood an **old green hat**. It hadn't been there before. It was all wet, as if someone had just poured water on it, and it smelled of... lilac! Tadzio looked around, but no one was there. He peeked inside the hat. And there - a surprise! **A small note with the following inscription. > *"If you want to find the source of the Big Splash, go where the ducks laugh!"*. - What does that mean? - whispered Tadzio with sparks in his eyes. - Is it some kind of ... water riddle? He took his hat, his bucket and ran through the garden, leaving behind wet footprints and even more questions.