We have found some beautiful spots where the ground is at water level and behind you the river rises high above, I'll have to go and take some pics for ya.
When we visited the Falls years ago it was freezing and the mist from the Falls was coming down as snow on a sunny day. That sort of thing is amazing to a Southerner.
Cool sight I just found. http://www.ebpm.com/niag/regpix/glry_niag_w-icebr02.html
I gotta go, in the spring I'll take some pics of all the ice flowing down the river, it's awesome.