The lighting in the cave scenes is very dark, adding to the atmosphere, though in key scenes the girls are lit with different colors like red, green, and yellow to distinguish them. Most of the film takes place in the cave, where the main attack occurs, isolating the characters. The costumes are outdoor clothing suitable for the adventure film genre. Props used in the cave include torches, lighters, and blades, which help with caving but are also used against the attackers. All sounds in the cave are diegetic natural sounds or those of the events.