Stop three of the World Aquatics Open Water World Cup 2024 is in the familiar surroundings of the beautiful port city of Setubal, Portugal. The Sado Estuary Nature Reserve has successfully welcomed multiple World Aquatics open water events, including the Olympic Marathon Swim Qualifier events in 2012, 2016 and 2021, the Marathon Swim World Series 2022, and the Open Water Tour 2023.