You will have “wild nights” and nights in civilisation. With wild nights, you are truly in the wilderness, staying in backcountry huts or camping in locations that may be several hours away from the nearest road or populated area. Other nights you will stay in cabins, lodges, or camp by the vehicle. Huts and campsite fees will be covered by your guide.
For huts and camping you can either bring your own bag and liner or rent it from your guide, but you’re responsible for bringing your own private camping equipment.
Regarding bathroom facilities once you’re in the wild, there will be long drop (pit) toilets. There will also be rivers or lakes nearby for a swim, sometimes even natural hot pools! The trip is set up so after a couple of nights of “roughing it out” in the wild, you will stay somewhere where you can enjoy a shower and even do your laundry.