I'm thinking we'll stick with the three trips of 1) Bruges 2) Antwerp 3) Ghent. We could do Luxembourg, but then I'd have to rent a car etc. I'll have to compare the price of 2 round trip train tickets to say Antwerp (our third place city) to the rental car for one day for Lux.

Are there any days to avoid travel to those three? Perhaps weekends are much busier in Bruges?

I think the train ticket is more on weekends, but it might have been the other way around. I'd have to double check.

Thanks to everyone