Beautiful place, overcrowded by holiday tourists (like me) on 12/27/12. Dress warmly at this time of year, as it is cool as you get deeper into the forest. The trees are phenomenal, whether still standing or fallen, and there are many opportunities for great photos. The "trail" is a boardwalk therefore although you need good walking boots/shoes/sneakers, it is a fairly "clean" walk the entire way. If its a busy day there, plan extra time for checking out in the gift shop--only one cashier; but lots of good stufrf and gift ideas in the shop with a good price range of items. Defintely worth the $7 admission, highly recommend you make the effort if you are able to take the time to go see this national treasure. LONG road up to the entrance, waiting line for parking spaces on the busy day we went, but visitors seem to come and go sufficiently in synch so that the wait for a space was only about 15 minutes.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.