Definitely a cruise to be immersed in the culture of the area. It’s not for those looking for casinos, specialty restaurants, or glitzy entertainment. This is an adult ( over 18) ship limited to just over a hundred people.
It is definitely a river cruise that I would highly recommend. I would also suggest that passengers do the pre cruise with three days in Madrid, Spain.
Although there are included excursions in every port, there are several optional ones that are available. If staying in Madrid, Viking offers an all day trip to the city of Toledo. It was known in Middle Ages as the “City of the Three Cultures “.