I spent 3-4 hours in Arcadia with a big chunk of that time heaving my bike over miles of man-sized granite boulders. It was ridiculous. As if the “small” rock gardens weren’t enough. I’m fairly certain I got stuck on “hiking only” trails…but it was never obvious were those started, nor how to get around them.
Nearly waterless, I was thankful to finally emerge from that section of the park.