An apparatus comprising: means for using a tracked real point of view of a user in a real space and a first mapping between the real space and a virtual space to determine a point of view of a virtual user within the virtual space, wherein the real space comprises a first zone and a second zone and the first zone of the real space and the second zone of the real space are non-overlapping and contiguous; means for causing rendering to the user at least part of a virtual scene determined by the point of view of the virtual user within the virtual space; and means for using a selected one of a plurality of different mappings to map tracked user actions in the real space to actions of the virtual user in the virtual space, wherein the first zone of the real space is associated with a first mapping and the second zone of the real space is associated with a second, different mapping; wherein the apparatus is configured so that, when the user is located within the first zone of the real space but does not reach into the second zone of the real space, a first mode is selected in which the apparatus maps tracked user actions in the real space, using the first mapping, to spatially-equivalent actions of the virtual user in a first zone of the virtual space and wherein the apparatus is configured so that, when the user remains outside the second zone of the real space and reaches into the second zone of the real space, a second mode is selected in which the apparatus maps tracked user actions in the real space, using the second mapping, to non-spatially-equivalent actions of the virtual user in the virtual space, wherein the second mapping makes available user interactions between the virtual user and one or more virtual objects within a second zone of the virtual space unavailable using the first mapping wherein the first zone of the virtual space and the second zone of the virtual space are non-overlapping, and a location of the virtual user remains outside the second zone of the virtual space while the virtual user reaches into the second zone of the virtual space. means for using a tracked real point of view of a user in a real space and a first mapping between the real space and a virtual space to determine a point of view of a virtual user within the virtual space, wherein the real space comprises a first zone and a second zone and the first zone of the real space and the second zone of the real space are non-overlapping and contiguous; means for causing rendering to the user at least part of a virtual scene determined by the point of view of the virtual user within the virtual space; and means for using a selected one of a plurality of different mappings to map tracked user actions in the real space to actions of the virtual user in the virtual space, wherein the first zone of the real space is associated with a first mapping and the second zone of the real space is associated with a second, different mapping; wherein the apparatus is configured so that, when the user is located within the first zone of the real space but does not reach into the second zone of the real space, a first mode is selected in which the apparatus maps tracked user actions in the real space, using the first mapping, to spatially-equivalent actions of the virtual user in a first zone of the virtual space and wherein the apparatus is configured so that, when the user remains outside the second zone of the real space and reaches into the second zone of the real space, a second mode is selected in which the apparatus maps tracked user actions in the real space, using the second mapping, to non-spatially-equivalent actions of the virtual user in the virtual space, wherein the second mapping makes available user interactions between the virtual user and one or more virtual objects within a second zone of the virtual space unavailable using the first mapping wherein the first zone of the virtual space and the second zone of the virtual space are non-overlapping, and a location of the virtual user remains outside the second zone of the virtual space while the virtual user reaches into the second zone of the virtual space.