Old San Juan Thermal Spa: Hot/Cold Plunge, Sauna, Steam & Gym
4.9 / 5 · 221 traveler reviews
Before leaving Puerto Rico, give yourself one final experience designed to help you slow down. Located in the historic streets of OSJ, Las Ruinas is a full-circuit thermal spa and wellness destination. During your session, move through four distinct wellness environments at your own pace: - A heated swimming pool and contrast plunge pools - Three heat experiences: dry sauna, infrared sauna, and eucalyptus steam room - A restorative lounge with unlimited herbal tea and light snacks - A fully equipped wellness gym Every visit includes a dedicated locker and unlimited fresh towels. Between thermal circuits, settle into our peaceful lounge, wrap yourself in a soft towel, and enjoy a quiet moment away from the pace of the city. Before you leave, stop by our in-house Smoothie Spa for a nourishing blend made to refresh and refuel you. Open daily until 7:00 p.m. and until 8:00 p.m. on weekends.
Your experience
Stop 1
Arrival & Orientation: Check in for your locker assignment and a quick facility walkthrough. Change into swimwear (flip-flops required, available for purchase) and collect fresh towels. Thermal Pool Circuit: Cycle at your own pace through the heated pool, the tension-relieving hot plunge, and the invigorating cold plunge to promote deep recovery. Heat Sanctuary: Enjoy unlimited access to three distinct heat experiences: the traditional dry sauna, the restorative infrared sauna, and the hydrating eucalyptus steam room. Lounge & Recovery: Decompress in the quiet lounge wrapped in soft towels. Enjoy unlimited herbal tea, water, and complimentary light snacks. Gym & Smoothie Bar: Access the fully equipped gym at any point during your session, then refresh with a nutrient-dense beverage from the in-house Smoothie Spa.
What’s included
- Hot plunge pool and cold plunge pool (hot and cold contrast bathing)
- Access to heated swimming pool
- Herbal teas, warm and cold water
- Full access to the equipped gym
- Towels
- Locker
- Personal locker with key
- Unlimited fresh towels
- Light restorative snacks (nuts, fruits, and popsicles)
- Snacks
- Choice of dry sauna, infrared sauna, or eucalyptus steam room (unlimited access)
Not included
- Smoothie Bar items (available for purchase on-site)
- Gratuities
Meeting and pickup
Arrive and get a brief intro to the space, experience, and what to expect. Locker assigned and time to change
Before you go
- Not recommended for travelers with spinal injuries
- Not recommended for pregnant travelers
- Not recommended for travelers with poor cardiovascular health
- Travelers should have at least a moderate level of physical fitness
Cancellation policy
For a full refund, cancel at least 24 hours before the scheduled departure time.
Check the policy for your selected date and option before booking.
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