Old San Juan Thermal Spa: Hot/Cold Plunge, Sauna, Steam & Gym

4.9 (226 reviews) San Juan, Puerto Rico
Duration1h - 2h
Free cancellationFull refund up to 24 hours before
Instant confirmationYour booking is confirmed right away
TicketMobile or paper ticket accepted
Group sizeUp to 20 travelers

Overview

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.

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
  • Each guest has its own locker
  • Personal locker with key
  • Unlimited fresh towels
  • Light restorative snacks (nuts, fruits, and popsicles)
  • Guests can enjoy teas, along with warm and cold water, to hydrate and reset between circuits. Light snacks such as nuts and popsicles are available to help replenish and balance the body.
  • Choice of dry sauna, infrared sauna, or eucalyptus steam room (unlimited access)
  • Smoothie Bar items (available for purchase on-site)
  • Gratuities

What to expect

  1. Las Ruinas Bathhouse & Gym
    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.

Meeting and pickup

Meeting point

Arrive and get a brief intro to the space, experience, and what to expect. Locker assigned and time to change

End point

Arrive and get a brief intro to the space, experience, and what to expect. Locker assigned and time to change

Additional information

  • 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.

Reviews

4.9 (226)
From
$90.00 per person
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  • Free cancellation up to 24 hours before the experience starts
  • Instant confirmation
  • You'll choose your date and travelers and pay on viator.com. Prices vary by date, group size and option.
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