Kemp. Michael Local resident and environmentalist in the Hawkesbury area, whose family have lived in the region for several generations. Portland Head Rock and Portland Head Reach July 2012 as Collection Portland Head Rock and Portland Head Reach July 2012 as Creator Sandstone cliffs on Dyarubbin at Koorea August 2012 as Collection Sandstone cliffs on Dyarubbin at Koorea August 2012 as Creator