Soap Creek Rapid

Soap Creek Rapid at mile 11.2 is the second significant rapid of Marble Canyon — often the first full-on wave-train experience of a Grand Canyon trip. Debris from Soap Creek on river-right narrows the channel and builds a sustained wave train that is straightforward at medium flows but builds teeth at higher water.

Difficulty

Class III at moderate flows; Class IV above ~25,000 cfs. Center-left line threads the main wave train.

The water

Character: wave train rapid.

Features: constriction from right-side debris fan; sustained wave train center; recovery pool below.

Hazards: large waves can swamp or flip at high flows; right-side holes at certain water levels.

How it changes with flow

Low water: Rocky run through center-left; waves modest.

Medium: Classic Soap Creek wave train.

High water: Wave train becomes large and powerful; more consequential.

Scouting

Commonly scouted, especially at higher flows. Scout from river-left.

Swim consequences

Moderate. Long pool below provides recovery.