Really enjoyed this attraction. The history on how the power station was built is fascinating. The show with the Tesla coils at the back of the station is fantastic, very loud but very cool. The walk through the tunnel is long but easily accessible, no steps, wheelchair friendly. Hard to believe it was made by hand and interesting to imagine that you are walking down a tunnel that used to be full of flowing water. The view at the end of the tunnel, at the base of the falls, on the platform is spectacular. Staff were all super friendly and full of interesting information. I’d highly recommend this attraction to anyone. Get a Niagara Wonder Pass and you can visit this attraction as well as Journey Behind the Falls, the Butterfly Conservatory and it gives you free passage on the WEGO Niagara Falls bus which can take you from attraction to attraction so you can park your car and leave it, it also passes by most major hotels. Added bonus it gives you free rides on the funicular (inclined railway) at the Falls too. Good deal!!