Arctic hare can be seen grazing the sparse vegetation among the boulders. Caribou seek relief from the summer heat on the snowfields. Moose raise their young in the secluded valleys of the lowlands. Ptarmigan, perfectly camouflaged, will scarcely move as you pass. The Lewis Hills are accessible only on foot.
Trails are nonexistant.
The terrain is rugged and sturdy footwear is recommended. Since the altitude varies from sea level to over eight hundred metres, night temperatures dip low. A warm sleeping bag and extra layers of warm clothes are necessary to ensure comfort. The weather is unpredictable and can change very quickly. Waterproof and windproof outer layers are essential.