In this paper we present a prototyped system to enable the virtual exploration of a complex virtual environment. Our approach exploits Quest3D as main rendering engine, its output is conveyed toward users PDAs to allow them to explore using the PDA as a (mobile) interface to the virtual environment. An important aspect of the system is that it relies on an off-the-shelf PC and low end wireless network. Some early results showed that the prototype is able to easily manage 5 PDAs. Suggested fields of use of our system are virtual cultural heritage, educational virtual environments, videogames. Keywords— Computer Graphics, Rendering engine, Remote visualization