Potholes!

This does not refer to one specific rapid or area, but rather it is about a river-wide issue at Hidalgo.  The rocks that form the rapids at Hidalgo Falls are sandstone, and the force of the river is constantly reshaping them.  This has resulted in numerous potholes all over the riverbed.  They vary greatly in size; some are the size of cans, but others are big enough to form large whirlpools.

If you swim at Hidalgo Falls, KEEP YOUR FEET UP AND DOWNSTREAM UNTIL YOU REACH THE BOTTOM, DEEP CHANNEL OR AN EDDY!!  There are no known incidents of foot entrapments at Hidalgo yet, but that danger is definitely there.  Be careful and swim smart!