The Seixal Bay Half Marathon is a road race held in Seixal, Setubal District, Portugal. The next edition is scheduled for late March. The event features a half marathon (21.0975 km), a 10 km road race, and a 5 km walk.
The course combines seaside and urban sections, taking runners along the bay and through the town streets. It caters to various participants: experienced runners can opt for the 10 km or half marathon, while those seeking a more relaxed pace can take part in the 5 km walk.