Waahhh sauna. I haven't tried it yet but there are many saunas here in the city and guess what, they offer unli buffet. Hmmm what I have in mind is to go swimming in the beach. It's been raining here in Manila but air is so warm due to smog of the nearest volcano in the metro.
A beach is always a better option. I wold choose that too, over any spa ;)