Last October I reached both churches in one day from Wroclaw. I travelled by train to Jawor, changing at Legnica. Later I caught a bus from the Tesco car park in Jawor to get to Swidnica, then returned from Swidnica by bus direct to Wroclaw.
Both churches were open for visits, and at Jawor I received a recorded commentary in English. But at Swidnica there were only brochures in Dutch. But the profusion in both churches of religious artwork and gilded decoration was stunning.