Spas don't allow photos inside because of privacy. People are walking around naked. Spa Castle is great. Very clean, plenty to do - and very crowded. Also sometimes there are a lot of kids running around. Fountain of Youth is very basic. I stay in the men's section and use the wet sauna and big jacuzzi. I go back and forth and take a nap. For me, that's enough. I'm able to relax much better at Fountain of Youth then Spa Castle. It's a personal preference.
Someone put up pictures of the inside on their Yelp page.
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