I got a voucher from Amazon local for three spa treatments at Planet Beach for $15. There were a selection of treatments available but I choose the massage, facial and full body hydrotherapy. All of the treatments are automated in that it's a machine doing it rather than a person, which I liked because it can be awkward having a perfect stranger touch you!
It was so relaxing and peaceful and I left feeling totally at ease with the world! The building was very clean, the staff were really friendly and there was no pressure to buy. You can pay a subscription for unlimited monthly treatments, and while I didn't sign up for this, I certainly would consider it if I had a slightly higher disposable income. Overall, a great experience and I would not hesitate to go back next time I see a special offer. Still, it's much cheaper than a conventional day spa.