What to do in Mallorca on a rainy day?

[Dreamycinemascape]

We're in Mallorca right now and it's chucking it down today and tomorrow, then nice and sunny. What should we do on the rainy days?

We're staying in Port Soller and we have a car. Thinking of a visit to Valdemossa tomorrow as its not coastal.

If you're heading that way, I'd highly recommend a visit to La Granja, I'd love to go back as I enjoyed it so much. Go early before the tour buses arrive.

Palma ? Cathedral, plenty of shops and restaurants, I recall it has a castle too.

Porto Cristo for the caves and lunch?

Thanks for suggestions! We've got a toddler too. We've decided to do the aquarium in Palma this morning, then an indoor market in Palma, and just generally have a mooch around.