Hunting in the Swamp is tough going! But oh so fun! Even though the swamp may seem the same all over, and every piece of cover looks ""Deery", typicaly there are areas that differ from one another. Find these differences and you'll find natural edges. I'm not talking real noticable edges like pines/hardwoods etc. Minor differences in terrain, plant growth etc all create natural edges that aren't always noticable to us, but the deer know they exist. Find areas that are wet during the fall that are dry most other times of the year. Sure, the deer can walk through some of these areas, but I have found that, like us, they prefer drier ground if it is available near by. In our area, some of those wet spots are so soft, your in over your knees pretty quick...so are the deer. Fingers of high ground that lead towards food, always a good choice. Take notice of ground that always seems to stay dry, if the cover is adaquete, you'll find bedding areas. In your description, it's likely the deer are staying in the swamp until dark, most likely staging in an area or two that offer some browse or most likely a foodsource they prefer that may not exist in most areas of the swamp. The deer love the Cedar, but most cedar swamps, don't actually offer a tremendous amount of Cedar that the deer can actually reach. Look for a unique foodsource if you can find anything.
One thing about the swamp, we humans tend to take the samae one or two routes in and out of the swamp everytime....I'm guilty! Hey, it's easier, safer etc but the deer will have you patterned in no time.
Another tip...Use binoculars!! Many will say, you can't see very far anyway, what good are they? Well, you want to see the deer before they see you! Often times the window of oppurtunity is small in that kind of cover, if your caught off guard your success will be minimal. Bino's will help you pick up parts of deer in the thick stuff long before the naked eye will. And when still hunting, those deer will hold very tight, they don't expect to be seen. Bino's will help pick them out before you jump them.
Also, don't relay on your ears, those deer move like ghosts in that stuff....freaky ghost like at times!
If you can't tell, I love the swamp!
What kind of acreage are you talking about? If it's small, best to keep out imo, just hunt the edges. This winter/spring scout it real good, hang a few sets or make a few stands just inside maybe and let it be until hunting season.