```
/\
/ \
/ \
/______\
/ \
/ \
/____________\
```
In this simple illustration, the "/\ " part represents the crest of the wave.
Here are some things to remember about the crest of a wave:
* It's the peak: The crest is the highest point the wave reaches above the resting level of the water (or whatever medium the wave is traveling through).
* It's opposite the trough: The crest is directly opposite the trough, which is the lowest point of the wave.
* It's where the wave has the most energy: The crest is where the wave has the most potential energy.
Let me know if you'd like a more detailed explanation or have any other questions!