Finding a pair of old thick socks in the hut and wearing them on the outside of your sandals is one method I have seen used to effect.
Having a good stick or pole is hugely beneficial. You can use it for balance and to check depth ahead of you. Mine has a ring of red tape just below the ’too deep’ marker. As has been mentioned, keep the stick on your upstream side.
Often river travel is a case of crossing back and forth to walk on the ‘beaches’ on the inside of the curves as both banks will alternate between ‘deep pool next to steep banks’ on outside of curves and beach on inside.
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