Had a great time hiking in, camping, and hiking back out the next morning. The hike in to Virgin Falls isn't bad (4.3 miles) and mostly down, but all of that down hill is a rough stair-climber workout on the way out. Recommend stopping to check out Sheep's Cave and other waterfalls on the way out as a break in the climb.
Side note - don't go in the caves. They are closed due to white-noise syndrome with the bats.