This cache is not at the posted coordinates. In fact, there is no reason to visit the posted coordinates.
The location of the cache is N 33 AB.CDE, W 118 FG.HIJ, where the values for A through J can be found by completing two Adventure Labs.
Each location of the following two Adventure Labs will provide one of the numbers you will need to determine the final location.
Long Beach Recreation Park Amenities by mojostones
Long Beach Recreation Park Sports Venues by foon