I believe that this may be the park: 43.543820359943886, -5.906782546065292
Because all three of these Wayspots are in the same box shown, only one can be a Pokestop or gym.
I explain more about this issue here: Why an accepted Wayspot may not be used in Pokemon Go (S2 cells and Pokemon Go)
Looking on Google Street View from there, I see restaurants I would try to submit. Restaurants aren’t the easiest nominations, as you have to convince reviewers not to hit that “Generic business” rejection reason. Really prove with links that they are a great place for seeking out, and not just another place you can eat. If the restaurant is not accepted, you could see if there is art inside the restaurant that would be worth a visit.