The rest of the party:
(Incidentally, they are not carrying much with them considering where they are on the trail. Most people at that point will have a large pack with a tent, sleeping bag, food, and water. They seem to have nothing, and they had to walk 6-7 miles to get to where they are, and they have 6-7 miles to get back out to the rim. Unless a raft dropped them off and they are hiking out.)