A suspended walkway and stairwell for entering the To Sua Ocean Trench in Apia, an iconic tourist attraction in Samoa. The structure consists of a large curved glue-laminated timber stringer and treads. The foundation solution is cast insitu reinforced concrete placed at the top and bottom of the staircase, the latter of which is designed to resist tidal and wave action. The staircase is to be prefabricated in New Zealand and exported to Apia.