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While quicksand is not a unique kind of soil, it can form anywhere groundwater mixes with sandy soil, creating a distinctive soupy mixture. Learning to anticipate places you might encounter quicksand is the best way to avoid becoming entangled in it. Quicksand most commonly occurs in:  Tidal flats Swamps and marshes Near lake shores Near underground springs Be on the lookout for ground that appears unstable and wet, or sand that has unnatural looking "ripples" in the texture. You should be able to see water seeping up from below the sand, making quicksand quite visible if you're on the lookout as you're hiking around. Always bring a hefty walking stick, both to use in case you become stuck, but also to tap the ground in front of you as you walk. A few seconds with a walking stick could be the difference between a messy wrestling match with a pool of quicksand and a safe hike.

Summary:
Recognize common quicksand areas. Look for ripples. Test the ground in front of you with your walking stick.