I didn’t realize that LA had so many great hiking trails right outside the city! There are many trails going up to Mt. Wilson Observatory. I went up from Mt. Wilson Trailhead. This is a very well-maintained trail and it took me 5 hours from the trailhead to trailhead. I read that it’s a busy trail but I got there late (around 11:20AM) and I only saw ~10 people going up.
I had forgotten how dry southern CA is (like this one). It’s pleasant but I get a little nervous as I’m so used to being in a moist (to say the least) environment.