
In short - some swamps, probably with particular appearence, are treacherous. They have areas acting as normal swamp, shallow water and deep water(boatable like was suggested in linked thread), But... they all have the same appearence, and do not check for swimming turned on.

Sooo, you'd better know safe passages through the swamp or have lots of const. also its useful to know boatable passages(deep and shallow water-like tiles) to be able to go fast through it, hauling some chests in your boat, foraging mantles and toadstools.
That imo would liven up swamp wondering much. xD And if those swamps are vast enough and have isles, make a swamp-dwelling an exiting way to live.)))
PS: Everyone knows that swamps are dangerous. Hearthlings must not be an exeption.)
Tried a few shots on search and found none.