Thanks for the information! Are you talking about south walnut by the dam and just north of there where the other river meets the lake? I’d assume it’s more of a spring spot when the waters a little higher and the walleyes are running?
It's a shallow lake with a channel that runs through it. You will be better off with a canoe or kayak to fish it.
The walleyes tend to congregate where the channel runs close to shore. You can also fish the holes in the blue earth river for them. A few flatties hang there too.