Drop some anti magic pillars and buoys in the harbor. No druid is gonna like being popped out of wild shape at 30 meters depth.

I have not being studying 3 different blockstats for you to skip me using them AGAIN

Hey, wasn't that in an old issue of Dragon magazine? (/j)

It's not malicious. I just can't resist the trope of having that epic spider v. praying mantis battle that's comparably totally inconsequential at standard scale. Makes me giggle.