To be honest, you will need quite a bit of time and some strong nerves, if you decide to travel to Jablonec by train. The 100 km journey from Prague to Jablonec takes three hours by train and requires at least one change. When looking for train connections, you can also enter Rychnov u Jablonce nad Nisou as the destination (you can then board a bus directly at the station which will bring you to Jablonec). On the other hand, once you are already here, we can highly recommend train transport around the Jablonec area. You can use it to get, for example, to neighbouring Liberec or to Harrachov.