More Sun protection
I found long sleeved flats shirts and gloves a must too for sun protection. A handkerchief was very helpful for my exposed neck also to help stop the sun burn appearing, Especially around the summer months. If you just wore wading shoes and and some shorts despite the sunblock you would likely be burnt to a crisp without Long pants. I think they are a must for sunny weather wading, The water usually washed off the sunblock in pretty short order.
Drink tons of water, at least 1/2 your body weight in FL OZ, try to limit the alcohol consumption or that adds to the dehydration and possibility of getting dehydrated.