Fish the easterly point of Mulhurst Bay, about 100 yards to 200 yards from shore drift there dragging 1/8oz jig with leech or minnow. You will not be able to keep up. You may notice this will change from day to day. However if you fish mid week in the evening when boat traffic is at a minimum you will catch them until you are sore. If you fish it on the weekend it will slow a ton and everyone goes to the provincial park. Then you can play bumper boats over there!
2 years ago a buddy and myself caught 280 walleye in 5 hours. I know that seems ridiculous but they were counted, had 150 and he had 130. All were released. One fish we had caught twice, Daryl lost his jig and actually caught it back about an hour later!
With 300 minutes in 5 hours that give you an idea of the kind of fishing we had.
Best of luck, I would be interested to know how you do as I have not fished there this year. But this spot has never failed me.
Trev