Into its 22rd year, The Vertical Marathon is an event that the Banyan Tree Bangkok has been organising since 1999 to raise funds for charity and donate the proceeds to the “HIV Formula Feeding Fund” of The Thai Red Cross, under the patronage of Her Royal Highness Princess Soamsawali. Fitness enthusiasts and charity supporters will be returning to Banyan Tree Bangkok on Sunday, 30th November 2025. Runners race up vertically for 1,093 steps or 61 stories. The finishing point of the race is at the amazing Vertigo rooftop.