We went on a hike here yesterday and it was wonderful. If you do the Rockefeller by itself, then it's an 8 miler. Adding the seven hollow trail is what makes it over 14 miles. During a 90° day, it's tough but well worth it, alot of shade. The sites were spectacular. If you dont wanna do a hike that long, you don't have to. This trail has 5-6 trails within it that range from 1-4 miles. Definitely a hidden gem between 2 national parks and worth the trip!