Signal Hill rises above Long Beach and provides one of the easiest ways to understand the surrounding geography. Although it is actually a separate city completely surrounded by Long Beach, it fits naturally into a visitor itinerary.
The elevated position gives you broad views across the Long Beach skyline, harbour and wider Los Angeles Basin when visibility is good.
Go for the view
Hilltop Park is the obvious destination. This is not an attraction that needs several hours; it works best as a short stop when the weather is clear.
Late afternoon can be particularly attractive, although sunset naturally draws other visitors too.
An oil history under the scenery
Signal Hill is also closely associated with Southern California’s oil history. A major discovery in the early 20th century transformed the hill into an intensely developed oil field, and traces of that industrial story remain part of the landscape.
That contrast is what makes the area interesting: panoramic urban views alongside evidence of the industries that helped shape the region.
A car makes Signal Hill easier to incorporate into the day, although your transport options will depend on where you start. I would combine it with other inland Long Beach stops rather than making a special cross-region journey solely for the viewpoint.