A few years ago we found ourselves in Grand Canyon during the last week of April. We tried for and were issued a walk-up permit to backpack down into the Canyon, spending a few blissful days and nights soaking in its grandeur. Right then and there we got hooked on the splendor and intimacy of a trek below the rim. And so every last week of April since, we have made it a point to return to that big crack in the earth and tackle a below-the-rim route.