The Semi Marathon de Setubal is a seaside road race in Setubal, Portugal. Its main distance is a half marathon, with 10 km and 5 km options included in the program. The event takes place in late April and features children's and junior races, making it suitable for families, first-time runners, and experienced competitors seeking a longer distance.
The course follows the coast in a city situated between water and mountains, near the Serra da Arrabida natural park. Setubal offers a historic center, the nearby Troia Peninsula has sandy beaches and Roman ruins, and boat trips on the Sado estuary provide opportunities to see dolphins, allowing visitors to extend their stay into a weekend.