The Hualapai Tribe will offer a zip line to its tourism lineup at Grand Canyon West, according to the Associated Press.

More than a million visitors a year visit Grand Canyon West, which is located outside the national park and is best known for the Skywalk, a glass platform with a view of the Colorado River.

Conservationists have complained that Las Vegas helicopter tours dropping passengers off for Skywalk and river tours have disrupted the natural quiet at the Canyon’s west side.

The Hualapai will offer a pair of zip lines over a side canyon at Grand Canyon West, starting in January.