Slideshow Slide Show: The Great Tsunami of 1964 June 16, 2014 Courtesy Cannon Beach History Center & MuseumAftermath of the tsunamiCourtesy Cannon Beach History Center & MuseumAftermath of the tsunamiCourtesy Cannon Beach History Center & MuseumAftermath of the tsunamiCourtesy Cannon Beach History Center & MuseumSandcastle Contest (exact date unknown)Courtesy Cannon Beach History Center & MuseumSandcastle Contest (exact date unknown)Courtesy Cannon Beach History Center & MuseumSandcastle Contest (exact date unknown)Courtesy Cannon Beach History Center & Museum of The 50th Cannon Beach Sandcastle Contest takes place on June 21, commemorating one Oregon's worst natural disasters. Filed under Share Share on Facebook Share on Twitter Share on LinkedIn Share on Pinterest Share via Email Share on Reddit Show Comments