Oh I know exactly what you mean, in Holland my opinion would be the same, you know that. I hate the cold and wet period in Holland so much that I would feel shit about that too. Having a pool like that within reach feels so luxury, while in reality, here in Spain it's quite normal. It's extra luxury if you can choose between the beach 5 minutes walking or the pool in the community garden.
Although I haven't swam in the sea once this year, and now I think it's too cold so next year again, I guess lol.
Hopefully the fall will be kind to you this year.. !PIMP