**Fish at night. **Walleyes often hang around their shallow spawning areas for a week or more following the spawn, but they're not likely to bite during the day, especially when the water is calm and clear and there's a lot of boat traffic. Starting at dusk, try working the outer edges of a known spawning reef with a slip bobber and a leech. Or you can longline a minnowbait along a shallow shoal of sand and gravel. The action is usually fastest in the first hour of darkness, but the fish might bite sporadically through the night. Fish bait that walleyes can silhouette against the background, above their line of sight rather than below it.
** If you're not catching fish in the shallows, try deeper water.** Many anglers do not realize that there is a turnover in spring as well as in fall, meaning that the water temperature is uniform from top to bottom. I've caught post-spawn walleyes during midday in water as deep as 40 feet. Later, when the lake stratifies into temperature layers once again, the fish most likely will be shallower.
Fish the windy shore. A windswept shoreline will almost always produce more post-spawn walleyes than a protected shoreline-for a lot of reasons. The wind blows in plankton, which attracts minnows and, in turn, walleyes. The wind also roils the water, reducing light penetration and allowing walleyes to feed in the darker environment they prefer. And, if the sun is shining, the wind piles up thee warmer surface water along the downwind shore, activating the food chain from the bottom.
Look for isolated bays along the downwind shoreline. If the water is a few degrees warmer along the windy shore, it will be warmer yet if there is a bay or inside bend along the shoreline break to contain the warmer water and keep it from mixing with the adjacent water. I've seen water in a bay as much as 10 degrees warmer than nearby water in the open lake. If you're fortunate enough to find this type of setup, you're probably in for a real treat. Chances are good that the bay will be teeming with baitfish, walleyes and whatever other predatory fish the lake holds.
Try a different basin of the same lake. Many good walleye lakes have two or more separate basins connected by narrows. In terms of the timing of the spawn, each of these basins acts as a separate lake. Rather than trying to force a bite from walleyes that just completed spawning in the deep basin, try the shallow basin. There, the fish spawned several days earlier and will probably be much more cooperative.