Some pictures here. We had a really dry winter so the ice plants are not looking great, but maybe that's also informative in its own way.
This first picture from today shows the terrain and the soil composition. The height difference in the frame is about 3-4 feet. That's Carpobrotus on the left and an unidentified plant (see flowers below) to the right. I left the Carpobrotus there because it's a better barrier next to the path running up the hill at the far left, which is the route that the dogs use to reach the top. The ice plant on the right is more like a carpet and you can walk on it after a while. It's the one I ended up preferring for most of this area.
Same height difference here. 4 different ice plants visible. Closeup of one to show how they climb all over the other plants if you let them.
Another 3-4 foot drop here.
This picture from a better year... these plants can turn into a spectacular wall of color in bloom. They are used all along the highways near here and the flowers are insane on some of those slopes after a good rainy winter.