In TRAILS, players hike back and forth along the trail, collecting rocks, acorns and leaves; taking pictures; and encountering wildlife to gain bonuses. At trailhead and trail end, you can turn in resources to earn badges, after which you start back in the other direction.
As players visit the trail end, the sun sets over the trail. As night falls, trail sites grant more powerful actions, but they won`t last forever. When the sun leaves the trail, the last round of play takes place, then the player with the most points from collected badges, photos taken, and bird sightings wins.