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For various VR/MR/AR applications, such as virtual usability studies, it is very important that the participants have the feeling that they are really in the environment. This feeling of “being” in a mediated environment is described as presence. Two important factors that influence presence are the level of immersion and the navigation method. We developed two navigation methods to simulate natural walking using a Wii Balance Board and a Kinect Sensor. In this preliminary study we examined the effects of these navigation methods and the level of immersion on the participants' perceived presence in a 2×2 factorial between-subjects study with 32 participants in two different VEs (Powerwall and Mixed-Reality-See-Through-Glasses). The results indicate that reported presence is higher for the Kinect navigation and Powerwall for some facets of presence.