The California Pacific International Exposition was an exposition held in San Diego, California during May 29, 1935–November 11, 1935 and February 12, 1936–September 9, 1936. The exposition was held in Balboa Park, San Diego's large central urban park, which had also been the site of the earlier Panama-California Exposition in 1915.
The Exposition was held to promote San Diego and support its economy, which had slowed with the country's Great Depression. The first year was such a financial and attendance success that it was held over for a second year. The exposition had hundreds of exhibits on history, the arts, horticulture, ethnic cultures, science, and industry. Some concessions and exhibits were unusual, such as the Gold Gulch, Lost Continent of Mu, Zoro Garden Nudist Colony, and the "One Ton Mechanical Man."