Unfortunately I don't have the answer for that particular question
Ok so I called and the answer seems to be 15$ for an adult, and various other prices, for seniors, teenagers, groups. On any Google Maps page there is a phone icon and the business or organization generally can be called to ask a question. Have a great day.
As far as I know there is no single day use. You can go as a guest with someone who is a member. Or you can get a trial pass which I think is valid for 3 visits.
Don't know if they even do that. I had a monthly membership.
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