After some more boogiewater "The Rockies" comes Powerful Popper. The normal move here is an S-turn between two boulders. The hole is an ender spot, but be warned: 1) it's a little bit trashy, especially if you get kicked into the river-right eddy line; and b) it's kind of blind from upstream, so extreme care is required if you want to avoid an unfortunate collision. An alternative line at Powerful Popper is the "Death Slot" to the left of the normal slot move. It's probably not as dangerous as its name implies, but it requires an exacting line of those who want to run it cleanly.
Hazard
V
Playspot
Rapid
IV
Hazard
IV+
Waterfall
III