The Journey Behind the Falls entrance is located at the welcome center on the Niagara Parkway, which is at the foot of the Horseshoe Falls. We paid for our tickets at the information center located down from the gift shop. The Journey is open for the entire year.
We visited during the autumn so there was no line at the entrance. You then are directed toward a couple of elevators and are given ponchos, which are included in the price of admission. A guide will lead you on your decent down 13 stories and give you a briefing on the history of the tour and the falls. Our guide was more than happy to answer any questions that you had.
When you step out of the elevator, you can hear the roar of the falling water. Yelling at this level is a good way to communicate. Walking straight down from the elevator is a corridor, which will take you to a dual observation deck. Here you will be standing at the edge of the falls, just above the river level. To get an even closer look at the falls, head down the stairs to the open observatory. Here is where you are guaranteed to get wet. You are so close, you can almost touch the "Horseshoe". This is a great spot to take a couple of unbelievable pictures but don't hang out to long or you will ruin your camera. Better yet, pick up a disposable waterproof camera before hand.
As you are walking back from the observation deck, you make a left down a 650-foot corridor, which will take you to two portals. At these portals, you can take pictures with the falls rushing down behind you. There is nothing really spectacular about these portals other than saying you were behind Niagara Falls. Did you wonder how they lit up the falls at night? The spotlights are located at these two portals.
I found the experience to be fun and different, though this is probably not for everybody. If you don't like to get wet don't bother with this attraction. The ponchos can only keep you dry for so long.