When Grissom throws down his backpack, Sara is holding her camera on the carrying strap. But just a second later in the same scene she has a grip on the camera's lens when they're embracing and kissing.
The tracking shot of the camera on the jungle's trail disturbs the vegetation causing movement of leaves and small branches.
At the end of the episode, The coordinates on Grissom's GPS Device don't point to Costa Rica as displayed, but rather somewhere near Arauca in Colombia, some 1000 miles offset.