Also known as: R2R, North Kaibab-Bright Angel
The full depth of the Grand Canyon, the Colorado River, Phantom Ranch, layered rock walls

The line through Grand Canyon, Arizona, United States - waypoints, elevation and the day-by-day shape of the walk.
Seasonal (mid-May-mid-Oct)
Seasonal (mid-May-mid-Oct)
Canyon descent
Canyon descent
Colorado River; lottery cabins/campground
Colorado River; lottery cabins/campground
Silver/Black suspension bridges
Silver/Black suspension bridges
Water; halfway up Bright Angel
Water; halfway up Bright Angel
Grand Canyon Village
Grand Canyon Village
Mid-May to mid-Oct (North Rim road/services open)
Inner-canyon summer heat routinely exceeds 40 C - the NPS warns against summer day R2R; winter snow/ice on the rims
North Rim services open ~mid-May-mid-Oct; the inner canyon is dangerously hot in summer. Confirm.
Steep rim switchbacks, the Colorado River suspension bridges, desert inner-canyon trail
Non-technical maintained corridor trails (North Kaibab + Bright Angel/South Kaibab)
Well-graded corridor trails; obvious
Suitable for reasonably fit hikers; not wheelchair accessible - confirm specifics
A popular, well-known route - busier in peak season
Rim-to-rim-to-rim (double), or an overnight at Phantom Ranch to break it up; South Kaibab vs Bright Angel for the south side
Trailheads at the North Rim (North Kaibab) and South Rim (South Kaibab/Bright Angel); ~4.5 h shuttle drive between rims
Trans-Canyon Shuttle connects the rims by road (~4.5 h); reserve ahead
Phantom Ranch (lottery cabins/dorm) and Bright Angel Campground on the canyon floor; Cottonwood CG on the North Kaibab
Layered outdoor kit, sturdy footwear, sun/rain protection, ample water; patchy mobile coverage - carry a map/PLB where remote
Services in Grand Canyon Village / North Rim; limited or none on the trail
Not required; self-guided
No permit for a day rim-to-rim; overnight in the canyon (Bright Angel Campground or Phantom Ranch) requires a backcountry permit/reservation, very competitive. Confirm.
Permits and operators change - confirm before booking.
Heat exhaustion/hyponatremia, dehydration, over-exertion; no vehicle exit mid-canyon; water sources seasonal
Retrace the route to exit; dial local emergency services; carry a means of calling for help where remote
This profile is desk research, compiled from public sources - not a first-hand trail report. Coordinates are approximate.