Last July we were tubing on the Shendoah River in West Virginia. Water level was fairly low. I had a small mouth bass on the line, when the current forced me to slam into a large rock that was hidden from view; it caused a minor break in the skin just below my knee. A week later, as we were visiting relatives in Dayton, Ohio, I was hospitalized for 10 days because of a severe case of cellulitius. The docs said that the bugs in the water enter the skin through any breaks in your skin, and often cause the infections. The reason for the hospitalization was simply to administer the IV anti-biotic drip every 6 hours. Needless to say, waders would have most likely prevented this.
Last week, I was tubing in Trap Pond in Delaware; I started to go without the waders until I remembered last summer's fun and games in Dayton, Ohio. So after 2 seconds of deep, heavy thought, I put the waders on!
Check out the prices at Cabela's and Bass Pro Shop. Earlier in March,my son and I were fishing the Rappahannock River in Fredericksburg, VA, but he forgot to bring his water leg - he cannot get his walking leg wet - so we went to Bass Pro and picked up a pair of breathable waders for under $70; used I'd expect to pay $40 or less.
Good luck, & remember to kiip the FLAT side down . . .
Cheers,
Bob Hendry