Fly fishing in lakes is a time honored sport. Lake fishing is productive. Many of our lakes are regularly stocked with catchable size trout. Some of them are very large. There are always fish to catch.
Lakes provide fairly predictable hatches.
Dry fly action starts in the morning, may come and go during mid-day may peak near dark. At other times the angler can probe the depths with sinking lines and add a third dimension to their sport. The river fisherman will find the transition to fishing lakes an easy one. Most gear used in lake fishing is the same as that used on rivers. Just swap those wading boots for fins and a pontoon boat and sample some new waters.