To help mark National Get Outdoors Day, all units of the National Park System will be free to enter this Saturday.

Welcome to a few of many improvements we have in store for you on Traveler. From a new Nav Bar with fast Drop Down access to our content, to our first-ever magazine ready to download, easier social network sharing, and even global park features—here are a few updates that'll make your time on The Traveler more fun and informative.

You can attempt a rim-to-rim hike at Grand Canyon National Park now that a detour around a washed-out section of the North Kaibab Trail has been provided, but park officials caution that it's pretty narrow and "hazardous conditions exist."

Here are the best national park campgrounds, according to the Traveler's lodging experts, David and Kay Scott, who actually spend more time in a tent than you might imagine!