Inside the ONE ONE ONE Eagle Street tower, this is a proper vertical grind rather than a road race with a view. The River to Rooftop Stair Climb Challenge sends you through internal fire stairs, a simple format with a charitable local feel and enough bite to make runners respect the stairwell. It draws elite climbers chasing fast times, people going up once, and hardy multiple-climb types who come back for another lap.
The climb is all about rhythm: short steps, steady breathing, and that handrail when your legs start arguing. The "concrete stairwell provides a consistent surface with handrails throughout," but it is still very much "testing your cardiovascular endurance and leg strength." Beginners can take it at their own pace if they have trained, and the payoff is a rooftop pause with "spectacular views across Brisbane's river and cityscape" before the very civilized descent by lift.