Cautious wading is paramount. No fish is worth your life.
Do not ever wade backwards.
Always wear a wading belt.
Consider using a wading staff for extra balance. It also can
serve as a tester of bottom conditions.....too deep, too silty
or mucky. Do not let the wading staff offer a false sense of security.
If you do not use one now, consider using one as you age.
Do not cast or fish while you are wading from one spot to another.
It is too easy to wade carelessly when your attention is on your
fly.
Cross at the tail out of a pool downstream of a rapids rather
than above a rapids.
Keep your side to the current, rather than your broad front
or back so the current can pass around you easier.
If you feel unstable in a fast current with a rocky bottom,
try wading with same foot always leading (single step) and other
foot always trailing. Single stepping makes for a slower crossing,
but a more stable one.
Loose wind breakers and big pockets can collect large amounts
of water that can pull you off balance and deeper.
If you do fall in don't panic. Assess your situation, forget
about your gear and look to where the river may carry you. Most
often you will be able to regain your footing in the same spot
but if you do get caught in the current, raise your feet up and
try to get them downstream and float on your back. Paddle or scull
with your arms and hands to help you move in the direction you
want to go. Do not fight the current. Neoprene waders offer a
lot of buoyancy.
When crossing with a buddy lock elbows or have the upstream
(stronger or heavier) wader grab the wading belt of the downstream
wader. Make sure one wader has firm footing before the second
one moves. Move your upstream foot first, making sure you have
good footing before transferring your weight. Then follow with
your downstream foot.
Always be looking ahead of where you are fishing to assess your
wading plan.