You can tell you got to The Slide when you get to a spot where the river is divided into two "channels" by a small rocky area with small shrubs above a flat pool with a horizon line. The horizon line is formed by a 3-4 foot ledge. Boof the ledge on the center right a little to the left of notch in the ledge, trying to be perpendicular to the ledge. After going over the ledge the river collects in a pool and makes a hard left turn. You can stop in the pool to collect your group or get out on the flat rock and take a look at the slide. Enter the slide center right and move to the left as you go down it and punch the reactionary at the bottom. The lead out of The Slide is a small boulder garden. The water in it should be pushing you to the right. Be prepared to catch the eddy on the river right as its the last eddy before Triple Drop.