Mission Hills is one of the older communities of San Diego. As a result, you can find some fantastically old, knotted, gnarly, and beautiful trees there. It's also interesting to think about the different trees that were popular at different times in the evolution of this city. At end of the 19th century and the turn of the next, it seems that pepper trees were the most popular. But I'm just guessing from what I've seen around the town.
These trees look like they might be located along a forest path, perhaps, but they are actually tucked into the back side of Grant Park.
It really is a lovely place to experience, you should go soon!