One of my favorite vacations was a camping trip in Taiwan where I got to go River Trekking. This is hiking upstream in a river. It’s very intense and calls for you to climb over boulders, swim through deep spots in the river, push against the current, and generally have a great time playing in the water. At the end of our trek, a small 10 foot waterfall fell into a deep pool. My friends and I swam over to the waterfall and spent a few minutes playing in and around it. I’ll never forget the feeling of the water pounding down on my head, the power of the waterfall, and how it blocked out all other sensations.