Ahh yes the snakes, I like to tell people if you don't look for them you don't even know they're there. I've literally killed thousands and they're always more, so now days I just conserve energy and preserve the silence.
Getting started is the most difficult, this is 30,000 acres of public land which all looks similar to what is shown in the pic. Topo maps are useless and arial photography is not much better. Best method is to just inundate yourself into this jungle. Once there its still overwhelming because the best terrain feature is under the water. This is because the water is roughly waist deep and while deer will navigate this they prefer the shallower water, which is knee deep. These knee deep areas have a harder bottom making it easier to traverse. Much like cows, deer will take the easier route when possible. Finding these features takes years of scouting and a good memory to find again (gps has helped tremendously with this).
In regards to tracking, the first shot is of the utmost importance. It has to be a shot which will inhibit the deer from traveling. Front shoulder shots are common and followed up with additional shots if needed. I fear tracking, probably my weakest attribute as a hunter. I've only lost one deer(~15 years ago) and it still haunts me. This is why I have implemented tactics much different than high land hunters. After the shot I immediately listen for water sloshing and if i hear it as a deer running, I'm in hot pursuit. I follow the running deer until I can no longer hear it. At this point, what I'm looking for is blood, muddy water, or possibly a trail where the duckweed is pushed apart. This is very time sensitive features which must be capitalized on if a recover is to be made. I don't necessarily fear pushing a deer, The noise of it running helps to key me in a where it is and to stay close behind. An injured deer normally doesn't run for miles in the water like they will other places. They get exhausted much more quickly and would rather go for a little ways and then lay down. I can often get close enough for a repeated shot before they jump. But if not I am dedicated to go through whatever terrain need be to make a recovery.