We didn't sit over bait because it's too hard to get in and out of the ground blinds or stands so they set up on trails between food and cover and catch them as they move back and forth.
It must've been exceptionally dry this year which made it easy for us to get around. They recommended rubber boots which I wore for 1 day till I started getting blisters then I switched to my Schnee's and never had to step in water.
So on certain years I can't say for sure if they use boats to get to certain areas?