How much is Michael Phelps spa?

I'm curious to know, could you provide some insight into the pricing structure of the spa that Michael Phelps frequents? Is it a luxury spa with high-end services, or is it more moderately priced? What kind of services do they offer, and how does the overall cost compare to other similar spas in the area? I'm interested in understanding what makes this spa stand out and if it's worth the potential investment for a relaxing experience.