The Vertical Marathon is an annual event held at the Jumeirah Towers to help raise charity for Medecins Sans Frontieres (MSF). The Marathon involves scaling this 350m high tower by climbing 1334 steps and 5 floors of the tower. More than 200 volunteers take part in this race. However, to ensure the safety of the participants, there is a set limit to the number of participants allowed to take part in this marathon. The 9th annual edition of this Vertical Marathon will be held on 29th April 2011, at the Jumeirah Towers, Dubai.