1. If you have a fleet in a sea region (not a coastal region (which I didn't actually test, but I assume works the same) with troops on it and you drag them off the ships and just leave them in the sea region and let the fleet sail away, they will stand in the sea region until the turn ends and then be dropped onto one of the nearby land regions none the worse for their experience.
2. Even stranger, if you have ships at sea, even in one of the boxes, you can drag a stack onto the fleet and they will 'walk' across the water at 5 days per sea region and embark onto those ships.
