If you do it, hope you have fun!
Sounds like you are talking about Wild Africa Trek. My family has done it twice now, one of those being in June a couple of years ago and then this past February. We love it. It’s 3 hours, immersive, and wonderful for animal lovers. They used to have a discount if you did an afternoon tour in June. We did an 11:45 to get discount and it was perfect. Check the menus, as they offer different food for am and pm times. Included in the tour is a photopass of your experience too. They took over 250 pics each time of the entire experience and will also take pictures of anything you want, think a tiny lizard crawling up the safari truck.
You are tethered above the Hippos and the Nile Crocodiles, everywhere else, you're on a Safari truck [not the same as the regular truck, you have a bench around the outside of the truck instead of the rows] or at the lookout where you eat.
Are the vests part of the tour?
Yes, the vest includes your tether system for crossing the rope bridges and when you're on the overhang above the hippos and Nile crocodiles. Once you've finished those, you take off the vests and board the truck for the rest of the safari and meal. So it's only worn during the walking portion of your Trek.
