On a rainy grey morning I launched my kayak from the grass in Pioneer Park and paddled downstream on the surging current of the river during freshet.
It rained for about half of the outing. High volumes of water makes the paddle back upstream harder, especially around the bridge supports.
When it rains we can wear a good paddling jacket and hat and use a spray skirt. We can stay relatively dry, especially on days that are not windy.
On rainy days we actually stay drier when kayaking than we would while hiking. If it is windy and rainy, we take a miss, but this is infrequent in Kamloops.