The gardens have experienced numerous expansions following Cason Callaway's death. The Cason J. Callaway Memorial Forest opened in 1972, and was designated a National Natural Landmark by the United States Department of the Interior. Robin Lake was the site of a terrible ferry accident in the 70's. The John A. Sibley Horticultural Center opened in 1984 (closed in 2015). Mr. Cason's Vegetable Garden (closed in 2015) was the location for years of TV shows about growing vegetable gardens, most notably the southern edition of "The Victory Garden." The annual Steeplechase at Callaway Gardens ran its first race in 1985. The Cecil B. Day Butterfly Center opened on September 25, 1988. "Fantasy In Lights", a Christmas light display, debuted in 1992. In 1999, the Azalea Bowl opened as well as the premiere of the Sky High Hot Air Balloon Festival. In 2000, the Virginia Hand Callaway Discovery Center was opened.