At A9, as I hit the shore, I rolled completely over, did a loop, then came nose up, and spun in place. After a minute or so of LVT acrobatics, lurched forward and hit the real ground.
At A30 (both instances on NDisles), was driving a jeep and sank into the ground. It looks like grass, not sand or water, but it is water. At one point, got stuck at a point where you can't even see the "water". I'd expect to get hung up at the waters edge, but not inland that far.