David Huang and I hiked in here on our first day in Canada after a very long day in transit from NYC. This climb was one of the easiest I've done, really stepped out and never steep. Definitely more of a WI2 than a WI3 climb.
I rate Grotto Falls a WI 2, not a WI 3 as referenced in the guide book. I have not been on enough WI 2 to know what it really is, but I have been on enough WI 3 to know that Grotto does not fit that bill. The only steep portion I observed was the very first curtain, but even that is normally stepped and picked out by all the traffic. Grotto Falls is what it is, a good place to teach beginners.
"So I was sitting in my cubicle today, and I realized, ever since I started working, every single day of my life has been worse than the day before it. So that means that every single day that you see me, that's on the worst day of my life."
--Peter Gibbons (Office Space)