I just returned yesterday from a 4-day trip to Rainy and it was tough going. Water temps from 53-55. We camped in Lost Bay and had a heck of a time catching any walleye. Tried jigging, casting jigs, bobbers, rapalas, bottom bouncers, and almost everything else in the box. Fished shallow water in bays and along islands and points. We ran from Cranberry Bay to out past Blueberry island (and all places between) and had a tough time even graphing fish. When we did graph them we couldn’t catch them. Caught a couple decent walleyes in the Brule Narrows but that was about the best we did. Lots of people came into Lost Bay but left in short order. It seemed that everyone was moving which told me that I wasn’t alone in my bad luck. I usually fish Rainy in June, July, and August and stay on the east end around the blueberry island reefs so this was an exploratory trip for me. The weather was beautiful but it looked like mayflies were stating to come out when we were there. That could have been part of it too. I have always done well on Rainy and this trip was disappointing as far as the fishing goes. Of course Rainy is beautiful and I was in great company so I have nothing to complain about. Heading back for at least one more trip this summer in July and then hopefully August. Should be better then.
Let me know if you want any specific questions about what we did so you can avoid my mistakes. Good luck on your trip!!! I hope you do better than I did!!