The trio travels westward, roughly following the ridgeline. The sun quickly warms the dark stones to uncomfortable temperatures, encouraging the castaways to stick to the shaded jungle. The sun quickly rises overhead and as the fiery orb reaches it's peak in the heavens the trio begin to feel the heat even beneath the canopy. A decision presents itself as the heat and humidity sap the energy from the explorers: stop and rest, continue slowly, or press on and brave the heat.
Progress is difficult to measure. The jungle all look the same, and the cliffside views rarely change.