Quadcopters for flying in a challenging envionments.
Flying in the redwoods poses interesting challenges. Your choices are either flying through the trees that seemed designed to get quads stuck, or flying above the trees at 200Ft where everything looks the same and it is easy to get lost.
I have found that propeller protection is a neccesity in this environment to have any fun, unless you enjoy figuring how to get your quad out of the tree. Without protection I fly very defensively and only stay in a small area that is relatively clear. With protection I can explore and not have to worry about tapping the occasional branch. I can fly more aggressive and explore which is much more fun.