Cell phone seems not working inside Grand Canyon. I believe it works inside Zion & Brace Canyon.
You will need something to cover head, ears & hands at some locations (windy areas, such as near the east entrance area of Grand Canyon & Horseshoe Bend).
You will need something to cover head, ears & hands at some locations (windy areas, such as near the east entrance area of Grand Canyon & Horseshoe Bend).