Be prepared for a TON of people on the Rainbow Falls hike. I was there with my family a couple weeks ago, we went in nice and early so we wouldn't have to ride the shuttle. By 10 there were probably about 50 people in the pond under the falls, we counted another 200 or so on the trail heading back to Devils Postpile.
You can always tell when another shuttle has dropped off because of the sudden crowd of people coming through!
If you take your fishing pole.... they were really biting the day we were there!
