Walking in one direction all day and ending up at that SAME LOG.
How about the VERY last shot, after the camera is dropped. Is that part of the rocks, or a face-up dead body partly hidden by the stone wall? Also, it's pretty safe to assume something grabbed Heather, causing her to drop the camera.
Someone or somethingwas attacking the tent.
After all that walking through the forest, they come across an abandoned house... with the interior covered in bloody handprints.
Who is not gonna mention the outro at the ending credits?. It's pretty ominous, ambient like, and very, very disturbing with all the sound effects. As if the Blair Witch is stalking you in the woods, and fits perfectly to the film's general theme. Antonio Cora, props to you.
Okay, the sequel was pretty meh, but the ending was actually kinda unsettling. Seeing the surviving protagonists brutally murdering half a dozen people (one of which by repeatedly ramming a pencil into the victim's head), all while madly babbling that they're the victims and the real victims are the murderers and/or witches. Sheesh.
While the movie was ultimately ruined by the sheer amount of Narm, it does successfully play up the fear of the unknown.
Kimberly going mad and stabbing the shop girl in the neck with a nail file.