I have just written a thread very similar to this!
I have discovered that the Vango Orchy 600 is exactly the same from what I can see, and there are canopies available. Fingers crossed someone can advise us correctly that they fit the voyager, and more importantly that the canopy is worth its money!
Amazing family weekend with old steam engines, classic car displays, market stalls, and full catering and bar. And camping on site - Save £25 by booking in advance.