I used my last spa ticket today. Good thing because it is now expired. This is how it works. It costs 210 pesos a visit, a little less if you have an LCS card and a little bit less than that if you have a DIF card. Or you can pay 2100 pesos and bring a small photo of yourself and get a 20 ticket pass. It is good for four months, excluding weekends and holidays and if you don't use them in four months, you can't use them after that. It is expensive to go there and the best time is early. It is usually crowded by around eleven or twelve. It opens at nine in the morning and I think it closes at seven in the evening, seven days a week.