Bob Stady wrote:

So my question is: is it possible to fly
fish from the shore/bank or do you have to be in the water to fly-fish.

It will depend on the water you are fishing, most bigger rivers, small
river with varying current seams, or various differing lies in the
water almost always require a wade to get in the best position to
deliver the fly. Other streams, particularly small foothill type
streams or the spring creeks common to the driftless area of Wisconsin,
wading is often counterproductive.