Nahanni National Park Reserve in the Dehcho Region of the Northwest Territories, Canada, approximately 500 km (311 mi) west of Yellowknife, protects a portion of the Mackenzie Mountains Natural Region. The centrepiece of the park is the South Nahanni River. Four noteworthy canyons reaching 1,000 m (3,300 ft) in depth, called First, Second, Third and Fourth Canyon, line this spectacular whitewater river.
What a treat to fly into the Nahanni National Park Reserve while we were in Fort Simpson! We circled Virginia Falls twice before landing on the river upstream. As we flew in front of the falls, our pilot started a count down "3-2-1" and a magical rainbow then appeared before our eyes.