One of my family's personal favorite mini-weekend get-a-away is visiting the Cabrillo National Monument in San Diego. The place also houses the famous Point Loma Light House and a gorgeous view overlooking at the Pacific Ocean. And if you are lucky, you get to see the gray whale migration.
I never grow tired of enjoying the view and just chill at the Point Loma light house. There is also a place to hike in the area and discover the sandstone closer to the beach.