Seven Rivers to Churchill, the author, Jim Lewis takes you along on a kayaking adventure from the Laurentian Divide in northern Minnesota to Churchill, Manitoba, the polar bear capital of the world. The journey begins on quiet spring-fed lakes flowing into small streams which meander slowly along the edge of the marsh but quickly accelerate through long stretches of rapids and cascade without restraint through gorges in a deafening roar; twelve hundred miles, seven rivers, sixteen lakes, and twenty-five portages. An excerpt: "I gave a couple serious strokes to get back into midstream, sitting...