I’ve seen many pilots attempt these thread-the-needle and other high risk/low value shots. Before filming any shot, risky or not, consider whether it really makes for an interesting shot in the first place. There are a variety of ways to film this particular scene. Great subject and locale, but use your batteries wisely by planning your moves ahead.
That said, last fall I descended my
MA2 into a river. I was a bit distracted talking to my friend trying to set up for a shot and I was using my smartphone instead of a tablet, which I never do because I can’t read the tiny telemetry. The water was less than 5’ deep, so I walked out fully clothed and retrieved it. A day in the rice bag and it was fine except the battery was compromised. Salt water may not be as kind. Ironically, I only bought the
MA2 because my
M2P was in for repairs after a crash the previous weekend and I’d been waiting all year to fly this locale.