I would like to take advantage of a weekend half price ticket on Belgian Rail to travel from Brussels to Leuven on Sunday, June 14th, but I also want to make a side trip in the morning to the Foundation Arboretum Wespelaar. Here are my questions:
If I purchase a roundtrip weekend ticket from Brussels North station to Wespelaar-Tildonk in order to first visit the arboretum, will I be able to stop in Leuven on the return journey and still use the same ticket for my return from Leuven to Brussels? Or should I purchase a roundtrip ticket to Leuven and use a separate ticket for the trip to Wespelaar? If the first option is available to me, would I be able to travel to Wespelaar-Tildonk with a train change in Mechelen and then return to Brussels via Leuven, or do the outward bound and inward bound routes have to be exactly the same to use the weekend ticket?
I am also planning to take a day trip to Antwerp on Saturday, June 13th, preceded by a visit to the Kalmthout Arboretum in Kalmthout in the morning. Can I use a weekend ticket from Brussels to Kalmthout and on the return journey stop in Antwerp for several hours?