I'm not a huge fan of lots of time spent in museums, but the Kura Hulanda Museum in Willemstad was outstanding. The salt flats, where we saw huge flocks of pink flamingos -- sunset was amazing. Down the road from the Marriott is the Pirate Bay beachfront restaurant, tables in the sand and very good food. Snorkeling at beautiful Playa Lagun, and there's a nice little restaurant perched overlooking the snorkeling beach there. The synagogue in Willemstad is the oldest still-functioning synagogue in the Americas. I really loved Curacao.