Built for the 1915–16 Panama–California Exposition, it remains one of the largest lath structures in the world.

[1] Alfred D. Robinson (1867–1942), founder and president of the San Diego Floral Society, suggested the construction of a lath house as a feature of the Panama–California Exposition, which was to open in the City of San Diego on January 1, 1915.

[2] The Lily Pond, or previously known as “Lagoon,” was built in 1915 for the Panama–California Exposition.

The Lily Pond is located in front of the Historical Botanical Garden.

Pictures taken during the time show the occupation of Balboa and the pond being used to train sailors.