Canyon Rims
There are numerous trails and viewpoints of the canyon falls, both from the north and south rim.

Mary Mountain Trail
This 21 mile one-way trail traverses the heart of Yellowstone.  Whether hiking the entire trail or a portion thereof, this trail offers the opportunity to view lots of wildlife.  More information.

Howard Eaton Trail
This trail runs east-west between Canyon and Norris, following a series of lakes.  It can be very marshy early in the season.  Hiking the entire length is a 12-mile endeavor one way.

Cascade Lake Trail
This easy hike takes 2-3 hours and is an enjoyable walk through open meadows and over small creeks for those with limited time. Look for wildlife and wildflowers in season.  More information.

Observation Peak
Hike to Cascade Lake from either of its two trailheads. From the lake, this strenuous, 1,400 foot climb in 3 miles will take roughly 3 hours. The hike takes you to a high mountain peak for an outstanding view of the Yellowstone wilderness.

Grebe Lake Trail
This is an easy 3-4 hour hike. This trail follows an old fire road through meadows and forest, some of which burned during the fires of 1988.  More information.

Seven Mile Hole Trail
This strenuous hike takes 6-8 hours to complete. Following the Canyon Rim for the first 1.5 miles (2.4 km), you will be rewarded with views of Silver Cord Cascade. Continue north another 0.5 mile (0.8 km) to join the Washburn Spur Trail; at 3 miles (4.8 km), the trail drops off to Seven Mile Hole, a 1.5 mile (2.4 km), 1,400 foot (425 m) drop. Hike it carefully, watch your footing, and conserve your energy. Depending on your condition and the weather, it can be a long hike back out. Be especially careful where the trail passes both dormant and active hot springs. Off-trail travel is prohibited. 

Washburn Trail
Located between Canyon and Tower, this hike is a favorite of Park visitors, and offers spectacular views of Yellowstone's eastern mountain ranges.  More information.