On a hike at Will Rogers State Park today, the weather was perfect and the air was crystal clear. Here's a photo looking out over Pacific Palisades, at the afternoon sun shining off the ocean.
On New Year's Day I hiked with friends in Los Pinetos Canyon (a tributary of Placerita Canyon). Weather was pleasant and very clear. The attached photo was the view across the San Fernando Valley.
I've led our hiking club at work since 1997, with members from all over Southern CA. I also volunteer with the Pacific Crest Trail Association as an Area Coordinator in LA County, and since 1998 maintain the local PCT as a member of the Southern California Trail Gorillas.