Hogs can be found anywhere, but the best bet for walking up on one in daylight is the edge of the swamp. They really like the soft mud and wet areas. They root for grubs and roots with their snout, it's easier where the ground is soft. Plus, they like to roll around in mud holes to slather their fur and skin with mud to keep the bugs off.
Look for areas where Oak Hammocks (islands of oak trees, not necessarily in water) meet cypress heads, then hunt the edges, where it breaks from one terrain to the other. Oaks are dropping lots of acorns this time of year, a staple in everyone's diet out there. If you find an area that looks loke a tractor tilled it, you're in the right neighborhood. Trails are often marked with black mud on small trees 15"- 2 feet off the ground. Mr piggy rolls in the mud, then scrapes it off on a tree on his way to dinner or on the way home. I have caught piggies sleeping in the daytime in a mudhole right in the edge of the Cypress swamp, or on a little island in the swamp.
Friend of mine saw a back and ears sticking up above a palmetto clump on a little island in a cypress swamp, took aim where he thought the vitals would be and shot with his 30-06. Pig didn't move. He had expected it to drop when he shot, as it was about 2 feet high, about the standard height for a standing pig. So, he shot again. Nothing. No movement. So, he eased over for a look. Thats when he realized he had a problem. The pig was lying down when he shot it. We got up to 385 on our camp scale before we ran out of room, head and one shoulder still on the ground.
Lucky for him, that happened on a private club, we were able to back a swamp buggy up to the pig and roll it onto a hitch hauler.
Would have been an impossible drag on public land.
One last thing; Pigs are often black with long fur. Bears are black with long fur. They share the same habitat, and similar diets. One is legal game, the other big trouble. Be sure.
Good luck.