Santa Cruz, four times the size of Manhattan and not one-millionth as busy, is one of five islands that make up Channel Islands National Park. Here, the only way around is by foot and water, and only in designated areas.
Yellowstone is famous for its wildlife and geysers (about half the world’s total), including Old Faithful. It has also become notable for tourists behaving badly. Glacier National Park offers the same animals, fewer people, and an increasingly rare sight: glaciers.
The Muse 2 Meditation Headband is a kind of high-tech wearable guru with built-in sensors that track your heart rate, brain waves, and body movements and provide real-time visual and auditory bio-feedback via — what else? — an app.