The top two sides in German football for the past seven years will battle it out for the DFB-Pokal today.
Bayern Munich are bidding to complete a league and cup double and their arch-rivals Borussia Dortmund are keen on lifting a trophy to crown Thomas Tuchel's first season in charge.
With the last seven Bundesliga titles shared between them, Bayern and Dortmund have been the agenda setters of the domestic game in recent years and their meeting in Berlin's Olympiastadion is therefore a clash of Germany's titans.
It will also be Pep Guardiola's final game in charge of the record German champions, not to mention Mats Hummels' last appearance for Dortmund before he joins their opponents next season, meaning there are plenty of ingredients for a game dubbed the Klassiker.
So obviously, when a boatload of Dortmund supporters floats past a boat carrying Bayern fans, there's bound to be a bit of shouting.