Normally there are some kind of lights reflecting on the water from one angle or another, but if there are none available already when we fished lakes in Louisiana where there were no electric lights and blacklights were still not an every day thing(dating myself here) we would take our coleman latern and hang it in a tree down the bank line we were going to fish we would back off for a few minutes and use the reflected light to guide our cast and as a plus by the time we made it down the bank there was normally at least one or two good fish cirling the light from the latern. Good luck