Hello Addi! The have personally try the Cave of the Winds and the Journey Behind the Falls spots and this is very nice. But the White water walk is new for me and i have never try this. So can you share here some details with some pictures? I am waiting for your reply.
Exploring Niagara falls through the White water walk would be a worthy experience for you I am sure. Friendly staff and a free parking area will help you to have a wonderful time. So go around this without any hesitation.