A [[Cavecave Automaticautomatic Virtualvirtual Environmentenvironment]] (CAVE) is an immersive Virtualvirtual Realityreality (VR) environment where projectors are directed to three, four, five or six of the walls of a room-sized cube. The CAVE is a large theatre that sits in a larger room. The walls of the CAVE are made up of rear-projection screens, and the floor is made of a down-projection screen. High-resolution projectors display images on each of the screens by projecting the images onto mirrors which reflect the images onto the projection screens. The user will go inside the CAVE wearing special glasses to allow the 3D graphics that are generated by the CAVE to be seen. With these glasses, people using the CAVE can actually see objects floating in the air, and can walk around them, getting a realistic view of what the object would look like when they walk around it.
O'Brien, Levy & Orich (2009) describe the viability of CAVE and PC technology as environments for assisting students to learn a foreign language and to experience the target culture in ways that are impossible through the use of other technologies.<ref>O'Brien, M., Levy R. & Orich, A. (2009) "Virtual Immersion: The Role of CAVE and PC Technology", ''CALICO Journal'' 26, 2: https://www.calico.org/memberBrowse.php?action=article&id=746</ref>
