
Step into a real Himalayan salt cave in Uptown Waterloo.
Salt Secret is an underground salt spa built around the calming, mineral-rich air of Himalayan salt: a real salt cave, salt sauna, steam room and massage, all in one quiet space.

An underground Himalayan salt spa in Uptown Waterloo
Salt Secret is a Himalayan salt spa built around the calming properties of real Himalayan salt. Every visit, from a single salt cave session to a full spa circuit, is built around one goal: a genuinely quiet space to slow down and recharge.
Owner Nancy Bishay, who also founded Derma Secret, spent time researching the history and traditions of salt therapy before bringing Salt Secret to life. She sourced the spa's Himalayan salt ethically and sustainably, and built an underground space designed to feel like a real escape from the everyday.
Real Himalayan salt, priced honestly up front
A sample of what's on the menu, from a single salt cave session to a full spa package. See the full treatment menu for everything we offer.
Salt Cave Session
A session in our Himalayan salt cave, in a calm, private room built into the spa.
$59 to $69Circuit 1
Salt sauna, essential oil steam room, hydration room, shower and a salt cave session.
$125Circuit 2
The full circuit plus a 30 minute relaxation massage in the salt room with halotherapy.
$240Salt and Soothe Package
A one hour salt cave session paired with a 30 minute relaxation massage.
$139Self Care Package
Salt sauna, hydration room and steam room, a sugar scrub, a relaxation massage and a deluxe facial with halotherapy.
$300Duo Package
Exclusive use of the salt sauna, hydration room and steam room for two, with a 60 minute hot stone massage and a salt cave upgrade.
$55560 Min Relaxation Massage (RMT)
A full body relaxation massage from one of our registered massage therapists.
$180Himalayan Salt Sauna Session
20 minutes in our dry Himalayan salt sauna, includes a shower.
$35What a visit to Salt Secret is like
No rush, no surprises. Here is how a typical visit goes.
Book your session
Call (519) 572-5595 or book online, and choose a stand-alone salt cave session, a circuit or a spa package.
Arrive and settle in
Arrive about 20 minutes early in comfortable clothing. Salt Secret keeps a fragrance-free spa out of respect for every guest.
Relax through your circuit
Move through the salt sauna, steam room and salt cave, plus a massage or facial if your package includes one, at your own pace.
Gallery
Who you'll meet at Salt Secret
The people you'll talk to when you book, and the ones who guide you through your visit.
Nancy Bishay
Nancy Bishay is the founder and owner of Salt Secret, and also founded Derma Secret. She spent time researching the history and benefits of Himalayan salt before opening Salt Secret's underground salt cave and spa in Waterloo.
Shirley May
Shirley May is Salt Secret's Client Experience Manager, focused on making every guest feel welcome and looked after from the moment they arrive.
Krysten Marks
Krysten Marks is Salt Secret's Client Experience Associate, helping guests with bookings, appointments and any questions about the spa.
A trained team, real policies
A few of the standards Salt Secret is held to.
See our spa policies for guidance on medical conditions and what to expect before your first visit.
What our guests say
★★★★★Self-care isn't just a buzzword to me, it's a necessity. My kids had gifted me the most beautiful experience at Salt Secret in Waterloo, and I'm still floating from it. From the moment I arrived, Joycelyn made me feel completely welcomed and cared for. She guided me through every step of the experience, starting in the salt sauna, followed by the essential oil-infused steam room.
“Salt Secret is truly a hidden gem. From the moment I arrived, I was greeted into a calm and relaxing atmosphere that immediately helped me unwind. The spa is beautifully designed, with a soft yellow glow from the salt walls that truly made me feel peaceful. My massage was exceptional, professional, therapeutic and incredibly relaxing.”
“What an amazing experience. Darlene is such a beautiful soul, she made it so cozy and comfortable for us both to relax and feel at home within the space. We did the circuit with the sauna, steam room, then salt cave, and the salt cave is truly a unique experience. It felt so relaxing.”
“What an absolutely spectacular hidden gem in Uptown Waterloo. John was an incredible host, and made me feel comfortable and relaxed from start to finish. Nabihah is a dream massage therapist. I left feeling recharged and relaxed, and I can't wait to go back.”
Questions before your first visit
What is halotherapy?
Halotherapy, also known as salt therapy, is the practice of breathing air with microscopic Himalayan salt particles dispersed into it, in a room built to mimic a natural salt cave.
What should I wear in the salt cave?
Comfortable, loose clothing is recommended. The salt may have minimal contact with your clothing.
How should I prepare for my first visit?
Arrive in comfortable clothing and plan to relax. We recommend hydrating beforehand, and arriving at least 20 minutes before your appointment.
Are there any side effects?
Halotherapy is generally considered safe. In some cases mild throat irritation or coughing can occur, and this is usually temporary.
Who should check with a doctor first?
If you have heart disease, kidney disease, diabetes, high or low blood pressure, or are pregnant, please consult your physician before your visit.
Book your session
Tell us which room, circuit or package you're interested in, and we will follow up to confirm a time.
Find us in Uptown Waterloo
Waterloo, ON N2J 1L7
Tuesday to Friday: 10:00 AM to 7:00 PM
Saturday & Sunday: 9:00 AM to 5:00 PM
Please arrive about 20 minutes before your appointment, and fragrance-free out of respect for other guests.