Susan and Thomas d'Aquino have lived on the shores of MacKay lake since 1977, when they bought the modernist house designed by Hart Massey. This avant-garde house is the only private residence in Ottawa included in the Royal Architectural Institute of Canada's millennium list of the 500 most significant buildings in the country. Creating a garden on steeply sloping terrain to complement the 'floating' house has been a 38-year challenge -- a journey of discovery, failures, and joys. Don't miss Susan's fascinating talk that tells the story of its evolution.