The brick pit is the last tangible evidence of a vast working industry at Homebush Bay. It is archetypal and primitive, raw, stripped and modified.The brick pit is first a place of extraordinary human endeavour, arrested. It isa portrait of land disturbance through use.Equally it is a place of adaptation, as an unviable industry is replaced by newsustainable technologies and a refuge for the rare and endangered Green andGolden Bell Frog.An aerial walkway and outdoor exhibition, twenty metres above the brick pitfloor, the Ring Walk gives the brick pit a genuine urban connection andpresence within Sydney Olympic Park.A simple ordering device, the ring walk facilitates both access andinterpretation to the brick pit, while fully recognising its extremely fragilehabitat. The pure form and consistent level of the ring registers the shiftingsides and depth.The Ring Walk allows for both the ten minute walk and a longer layeredexperience, through widened and shaded sections of the platform.The outside edge of the ring is a variegated screen: part exhibition, mesh andglass viewing panels.Interlaced with interpretive devices, the ring provides visitors withperspectives into the history of the brick pit and its use as a wildlife refuge.The ring has two points of connection to the parklands: one to AustraliaAvenue and the Town Centre the other to Marjorie Jackson Drive and theextensive parklands beyond.The steel structure is a slender and delicate intervention within the massiveroughness of the pit. A braced cruciform structure comprising a series ofimprobably thin, flat steel members lightly touch the base. This attenuatedstructure appears to tip toe across this fragile site.The cruciform is capable of adjusting to the idiosyncrasies of the base terrain:extending the supports to the foundation of the reservoir or straightening toavoid a frog pond.Whilst the ring section opens outwards to the site, the bridge sections areenclosed and muted.