Java3D is an application-centred approach to building 3D worlds. We use Java3D and VRML to design a prototype WWW-based 3D Hotel Browsing system. A Java3D scene graph viewer was implemented to interactively explore objects in a virtual universe using models generated by a commercial computer graphics suite and imported using a VRML file loader. A special collision prevention mechansim is also devised. This case study is reported here by reviewing the current aspects of the prototype system.