Hi there,
I've just finished my Camino from Sevilla and passed through Ourense, and I have one recommendation that I want to share
There are some great thermal baths in Ourense, many of them free, and you can get information in the tourist office about each one's thermal properties, temperature, etc.
The best ones though were Outariz, and they were SO good that I ended up staying in Ourense a few more days cause I was injured it was so restorative... Lots of different pools and waterfalls and jet streams and they really worked wonders on my sprained ankle and aching back! It felt like pure luxury and only cost 5.50, which seems really cheap for how much cleaner and more luxurious the whole place was. I went to some of the free baths too but they just didn't seem worth going to once I'd discovered the best ones! There's a tram that goes there regularly from plaza mayor, it's definitely worth it. I hope you enjoy