This means that as crowded as the National Parks can get, there are lots of trails and land that rarely get explored. But now, we always try to get a backcountry permit too and get off the path most traveled… err, hiked. Things to know about backcountry camping in Grand Teton National ParkBear canister: First, know that you’ll need to carry a bear canister to keep all of your food and toiletries. Backcountry permit: In order to camp in the backcountry, you’ll need to obtain a wilderness permit. It is possible to reserve your backcountry permit online, but there are limited permits available and you must know your exact dates.