Hopefully this helps with your decision-making:
I did WAT in September. Our start time was at 11-something, so we were doing it during the heat of the day. It was HOT.
It is the better part of two hours of near non-stop walking on rough terrain that includes slopes up and down and which for quite a bit of the time takes you through forest, so you are navigating under tree branches and over tree roots. While going up and down inclines. You are on a path, but it there are obstacles on that path (see: roots, rocks, tree debris, etc). Branches will fling back and smack you in the face. Although you start in the AK proper, once you go onto the trail, it is a walk in the woods on a forest/animal *path* not a well-groomed trail.
There are short pauses when the guides stop to point out things, or to look at animals. Then it is back to walking.
At one point you cross a high series of two bridges that have gaps between the boards (there is a safety net below and you are harnessed above, so there is no danger of falling to the river below, but you have to be able to navigate the boards to get to the other side). The gap between some of the boards is a maybe a couple feet (or it certainly seemed like that). I am 5'4" and my legs were stretched to get from board to board a few times, others not so much.
If you do a Google images search for
"wild africa trek" bridge
you will see lots of pictures illustrating what I mean about the bridge.
The walk is long and at a steady clip except for the pauses. it is not a leisurely stroll through the neighborhood.
At the end of the walk, you come to a safari vehicle which everyone loads in to. You do part of the safari and are taken to a safari station for food and washrooms and rest. The safari station overlooks the animal area and is great for animal watching. You are there for a while, so it is a nice and restful break. There are washrooms. There is food (and they do a GREAT job of accommodating food allergies if they are notified in advance). there are decent chairs. It is shaded.
After the rest time, everyone loads back up into the safari vehicle to complete the safari. Note that it is an extended safari from the Kilamanjaro safari. it goes off-track onto a bypass at times to spend longer looking at something or to get an explanation of something, and as I recall in some areas it uses a different pathway.
Then you return to the base station and your WAT is over.
-SW