When TVB adapted LEGEND OF THE CONDOR HEROES in 1982, it depicted East Heretic Wong Yerk See's "Peach Blossom Formation" quite dramatically: peach blossom trees would move from their positions and chase after intruders, spew colorful poison smoke at them, form defensive perimeters around them, and even bind intruders' limbs so that the intruders could not move (there's no modern security system that's that good).
It was fun to watch, but I'm guessing that's *not* how Jin Yong depicted the Peach Blossom Formation in the canonical novel, right? I'm guessing that the novel probably depicted the Peach Blossom Formation as yet another one of those "Five Elements Octagon" traps that are placed in certain positions to create optical illusions that disorient and thereby disable intruders. The trees don't actually move, right?