Lince and Zon had decided to head into the dark green jungle area and looked for a location that would provide them decent cover. Eventually, they found a cliffside of sorts, where they could set up some type of camp.
Because Lince was a powerful warrior, and Zon was… whatever Zon was, it wasn't as if a campfire was needed for heat or for them to see. Zon could see well at night, and Lince could use his other senses to help him in a fight.
The cliffside was chosen because they could at least see enemies coming from one direction toward them, and didn't have to worry about their back or what was above—at least at night.
Still, there were a few things Zon had said to set up, and they were temporary measures to allow them to hear if beasts were heading their way. Breaking apart bark of the tree or heavy-duty leaves, setting them up so if beasts came then it would clack several dark black coconuts together, setting them awake.