Barton Creek - 3. Loop 360 to Zilker Park (Austin) (3.75 miles) (TX)
The standard line for Campbell’s Hole is to start center and work left, bypassing right of some "FU" rocks and then left of the large hole and boulder at the bottom (this line sometimes requires ducking under a tree branch.) Large rocks just below the surface have been known to flip kayakers and send them into the hole (particularly at lower flows.) At flows around 1250 cfs, the hole can be easily boofed by experienced boaters. At above 2000 cfs, a straightforward line opens up at center right, skirting the right edge of the hole.