The Disneyland Resort Diamond Celebration is the celebration commemorating the sixtieth anniversary of the
opening of Disneyland Park and the founding of the Disneyland Resort. It started on May 22, 2015 and ended September 5 2016.
As part of the celebration, the iconic Sleeping Beauty Castle in Disneyland and Carthay Circle Theatre in Disney California Adventure glistened, each with its own diamond medallion featuring the letter “D.” The entire resort was given décor and festive banners in shades of blue. Also bearing the diamond anniversary theme, creative merchandise and food items were designed to complement the celebration. Several of Disneyland's attractions received new additions. Among these are new Yeti figures in the Matterhorn and the return of the Hatbox Ghost to the Haunted Mansion.