Any vehicle that is legal in it's own EU country is legal to drive in any other EU country. Its a slightly grey area open to interpretation by the cop who stops you beside the road but as there is no legal requirement to register a caravan in the UK then they are legal to tow in any other country. UK caravans do not have their own number plate displayed so do not require a registration document.
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.