British naturalist Roger Lovegrove, author of “Islands Beyond the Horizon: The Life of Twenty of the World’s Most Remote Places,” has a soft spot for harsh lands. Halfmoon Island in the Arctic Circle, he writes, “is God-forsaken beyond words and produces a brief shudder, but at the same time it has a strange allure.” Lovegrave is the perfect guide for the extremely adventurous armchair traveler.
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