I say it is.
Here's a challenge for you to plan a journey on an “old” train which travels alongside the Douro River banks.
I went with my parents and friends. They absolutely loved it since it was their very first time on an Historical Train, not to mention my dog (I found out it loves to travel).
It turned out to be a fun journey for all of us.
As soon as possible, we will announce the programme and the train’s time of departure for 2019.