Yak traffic on the Everest Base Camp (EBC) trail 

It was always good to see these Yaks come by you on the trail. Not only did they bring a smile to your face, but they also allowed you to take a break. You could hear their bells long before you could see them. Something I always looked forward to.
This is video is on the route to Everest Base Camp. At the start of the video you can see Ama Dablam in the back.