People take part in the annual event called the Herring March in Puck Bay
A plane flies over a group of people taking part in the annual event called "Marsz sledzia" (the Herring March), marching a 12km route through the shallow waters of the Baltic Sea from Kuznica on Hel Peninsula to the town of Rewa on the other side of Puck Bay, Poland, August 17, 2019. Picture taken August 17, 2019. REUTERS/Matej Leskovsek