There is no horror to this, it is just young friends on a short camping/hiking trip that run into outdoor challenges and explore their feelings and relationships. I guess the makers/marketers decided that romance and feelings while camping was a hard sell so they called it a 'HORROR' movie but there is no horror, no monsters, no bad guys, no creatures or supernatural forces, no unusual forces of nature or anything else of 'horror' just feelings and relationships.
The acting is fine and everything else is fine but there isn't anything exciting to it just an OK portrayal of what? Relationships and feelings.