Coordinates: 37°50′32.62″N 122°15′47.36″W / 37.8423944°N 122.2631556°W
Idora Park was a 17.5-acre (71,000 m2) Victorian era trolley park in north Oakland, California constructed in 1904 on the site of an informal park setting called Ayala Park on the north banks of Temescal Creek. Idora Park was leased by the Ingersoll Pleasure and Amusement Park Company that ran several eastern pleasure parks. What began as a pleasure ground in a rural setting for Sunday picnics evolved over time into the finestamusement park in the part of the San Francisco Bay Area. Popularity of the park declined after the advent of the automobile, and in 1929, Idora Park was razed.
The Realty Syndicate constructed the park in 1903 on a site of Ayala Park that included an opera house, ranchlands and greenhouses on the north banks of Temescal Creek in North Oakland. Rodney Ingersoll erected the first figure eight "sky railway" on the site in 1903. Idora Park was leased by the Ingersoll Pleasure and Amusement Park Company that ran several eastern pleasure parks and originally the name was to be Kennywood Park (the name of an amusement park in Pennsylvania). It was reported that Mr. Ingersoll named the park after his daughter Idora, but there is some question about the name because of the park with the same name located in Youngstown, Ohio. That park was said to have been named either by a contest winner claiming, "I adore it!" or after a local Indian tribe.