Bristol 45.5 - AiniA
Join Date: May 2006
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sounds like a great trip, couple of thoughts
Just a couple of things to consider ...
Water temperatures in May are still very, very cold and weather can be highly unpredictable. Also the cold water means that air temperatures on or near the water are cold when it might be very warm a mile inland. Also, if the air is warm it can produce localized fog over the cold water.
Another consideration are bugs -- at least for the camping part. This area (and much of Canada) get a plague of black flies from about May 10th until the first really hot spell of weather when they die off (say mid to late June). These little beasts look like small house flies but they bite and can fly into your eyes, ears and nose. Very nasty to be around - you would have to camp in an exposed area so that the wind keeps them at bay and that might not be good if it is blowing.
I have done a lot of flat water canoe tripping north of Manitoulin, in the Killarney Park area and would choose a different time of the year for your trip. Mid-summer can be hot and there will be lots of boats and people around. I think a trip in mid-August might be very nice. No black flies, fewer mosquitoes, warmer water and less chance of fog.
BTW, my wife lost her job last week, we are heading off sailing for a few years as of May 1.