I had turned off obstacle avoidance in DJIGO, back out, then go into Litchi and turn off VPS. I think what happens sometimes is the surface of the water condition, ie ripples from wind, light reflection, large fat women floating around, causes the P4 to avoid low flying and sometimes not. I try to align myself so to see the space between the water and low hanging trees when flying in the river video, but as you'll see in this short clip what I lack is good depth perception. Plan was to skim along water, pass under some branches, and then climb sharply-except I had not passed far enough. I have done this long before with a P2, as soon as it touch a branch it nosed dived into the water, but the P4 righted itself so quick and sounded like a super weed eater. I tried to climb out of it, then descended, all by video, too far away to see and blocked by the leaves, and when I came out the bottom I pointed the camera down to see how high I was and it was less than a foot. So this attest to my stupidity, spastic control reactions, and a hell of a recovery for one tough bird. So now when the wife wants the shrubbery trimmed, I got a lazy quick trick.