Combine Peek-a-boo, Queens Garden, and the Rim Trails for a 6.5-mile loop. Leave North CG or the Lodge at sunrise for Sunrise Point, then head into the hoodoos on Queens Garden and link up with Peek-a-boo. Reach the rim again at Bryce Point and hike back north to your accomodation on the Rim Trail.
You will drop down more than 1500 ft on this hike and then return the same to the rim. Also, between Bryce Point and Sunrise Point, the Rim Trail is not flat but rises and falls along with canyon's edge. Take food, water and a camera.
Expect crowds at the auto overlooks but very few people in between.