I think Crocs would get stuck in the mud and come off your foot.
I almost never wear waders for early teal. Just fishin' shorts and some wading shoes, water is warm. If you need to wear some, you can get hip waders pretty cheap.
"The greatest thing in the world is for a man to take his son hunting, because he won't ever have to hunt the streets for him tomorrow."
- Cowboy Fernandez