- Great Smoky Mountains National Park divides North Carolina and Tennessee
- Visitors to the park can spot bear, elk and spring bird migrations
- There are day hikes for the novice and longer hikes that will make you sweat
(CNN)The boundary between Tennessee and North Carolina might be one of the loveliest border crossings ever: It's the crest of the Great Smoky Mountains National Park. Hikers on the Appalachian Trail walk the line between the two states for most of the trail's path through the park.