Many years ago I night fished a trout stream in southeastern Minnesota. A couple of times a week I'd fish until about 10 p.m. My mentor and I fished three different holes and all three were shallow from where we fished to fairly deep along the other bank. All three had rapids that dropped into 3 to 4 feet -deep long holes. Used big wet flies of varying types and we were able to catch a number of large browns. Had to wear a wide brimmed hat though because the bats would come flying in so close to catch the bugs flying around your head that you could either feel or hear their wing beats. At times it was like fishing with your eyes closed and other times it was so light you had no trouble seeing. It was by far the best time to catch trophy browns!
Night fishing was always interesting and a different sort of a challenge.