Pepita, take a look a visiting Logroño.
First transportation. Logroño is a small city/town with no need for a car or even to use the bus. In fact the historic center is a pedestrian zone so you can stay there and never have any traffic problems (noise, pollution, etc). While it is not the best connected place, you can make easy day trips to Burgos, Vitoria, Bilbao, San Sebastian, Pamplona and Zaragaza by bus and train (the new stations are a 10 min. walk from the center) There is also a good regional bus system that allows you to visit the different towns of La Rioja.
Besides the well known rental platforms, in the old town there several tourist apartment, for example Sagasta apartments and Laurel apartments.
About fishing, I don't know the whole situation, but many people throw a line into the Ebro. In Casalareina there is a fishing zone in the the river Oja. There is a picnic area there and in the town you can visit the monastery of Nuestra Sra de la Piedad, it makes for a nice day. There are stables around Logroño that have horse riding.
The Museum of the Rioja, is okay, but there are many historical sites you can visit. There is San Millan a UNESCO site, and the birth place of Castillan (and written Basque) or the cathedral in Santo Domingo de la Calzada or Najera with its pantheon of the Kings of Navarra. In Enciso you have some of the best dinosaur tracks in Europe.
In Logroño you could brush up on your Spanish at the La Rioja Spanish school, which is also in the center.
I won't comment on the dining options but you will eat well. In fact, according to some, the tapa experience here is better than in San Sebastian. About bakeries, there are several ones in the center. The local bread is call Pan Sobado.
Just something to think about.