4 marathons in 4 consecutive days in 4 countries: this is the challenge that the Director of the International Social Service (ISS) Switzerland took up in West Africa from 28 to 31 July 2016. Olivier Geissler will set off on a 4-stage race from the Gambia to the Republic of Guinea (Conakry) via Senegal and Guinea-Bissau in order to raise awareness on the issue of migrant children and to collect funds for the care of children.

Director: Rémi Willemin