 The Aire Valley Redwoods have also become a local tourist icon together with nearby sites like the Otway Fly and Treetop Walk, Beauchamp Falls, Hopetoun Falls, Triplet Falls and magnificent stands of mountain ash and rainforest.As the trees grow and become more impressive they will attract increasing interest from local, national and international tourism which presents a significant threat.A small stand of redwoods was also planted as part of a revegetation program in 1930 by the Melbourne and Metropolitan Board of Works (MMBW) in the Cement Creek catchment near Warburton.