Located at the start of a canyon Balboa Park’s Zoro Garden, a small sunken grotto, is a butterfly garden.

The garden contains plants needed for both larvae and adult butterflies. In a rededication ceremony on July 21, 2007 over 1,000 butterflies were released in the garden.

The rededication ceremony marked the end a renovation of the garden that included cutting down

some of the trees to let more sunlight into the garden.

Built by labor paid by federal stimulus money for the California Pacific Exposition of 1935-1936. Those workers earn their pay constructing those stone walls, which reportedly contain 1915 stones.

The garden was built to house a small nudist colony for the Exposition. There were complaints about the nudity and that the nudists were paid showgirls, not real nudists. The garden was the most lucrative outdoor attraction in the Exposition, which may explain why the protesters could not end the colony.