Storms can arise quickly. If there's lightning, take cover in a building or in your vehicle.
Watch where you walk - rocks are sharp, brittle, and unstable; cinders can be slippery underfoot. On either surface, a fall is an unpleasant experience.
This is dry country. Carry water with you and in your vehicle. Drink before you're thirsty.
Temperatures and sun exposure may be greater than you're used to. Slow down. Learn about survival in extreme heat.
Speed limits are reduced for the protection of pedestrians and wildlife. Please watch for both.