Did you know fairy tales come true? But only in St. Moritz, where horses race across a frozen lake over three weekends each winter. Jack investigates this one-of-a-kind event, speaking with Dennis Schiergen, the Head of Racing and a former jockey, Valeria Schiergen, the first ever female skijorer to win in St. Moritz, and horse owner Sabrina Casty (with her horse, naturally).