The Spa at Four Seasons Hotel Seattle: what to book and who can use it
The Spa at Four Seasons Hotel Seattle is a 6,000-square-foot, refreshed spa offering eight treatment rooms (including a couples' suite), signature massages and body treatments—book massages, facials or the specialty Puget Sound Meditation Massage for a full spa experience. Spa facilities (lounges and locker rooms) are for guests 16 and older; massage and facial treatments are available from age 12 with a parent or guardian present.
In this guide
Location, hours and who runs it
The Spa at Four Seasons Hotel Seattle is inside Four Seasons Hotel Seattle at 99 Union St, overlooking Elliott Bay in downtown Seattle. The property address and downtown location put the spa a short walk from Pike Place Market and the Seattle Art Museum.
Spa service hours are Monday–Thursday and Sunday 8:30 am–7:30 pm, and Friday–Saturday 8:30 am–8:00 pm. The spa director named on hotel materials is Jonathan Kalaikai.
- Hotel address: 99 Union St, Seattle, WA 98101
- Spa hours: Mon–Thu & Sun 8:30 am–7:30 pm; Fri–Sat 8:30 am–8:00 pm
- Spa director: Jonathan Kalaikai (listed by the property)
| Item | Detail |
|---|---|
| Spa size | 6,000 sq ft |
| Treatment rooms | 8 (includes couples' suite and nail salon) |
| Recognition | Forbes Travel Guide Four-Star Spa |
What to book: signature massages and body treatments
The spa lists several signature treatments that highlight Pacific Northwest elements and sound therapy. If you want a massage, consider the Puget Sound Meditation Massage (which pairs therapeutic touch with sound/vibrational therapy and includes a meditation segment) or the Sleep More in Seattle Massage (a full-body treatment with added scalp and hand rituals).
For body treatments, the spa publishes a Northwest Radiance Body Treatment and a Detoxifying Mud Wrap; each of these is described as a 75-minute treatment in the spa materials.
- Puget Sound Meditation Massage — therapeutic touch + sound/vibrational therapy with a meditation component
- Sleep More in Seattle Massage — full-body massage with scalp and hand polish rituals
- Northwest Radiance Body Treatment — body treatment with regional-inspired elements
- Detoxifying Mud Wrap — uses Hungarian Moor Mud (Lake Hévíz)
| Type | Examples |
|---|---|
| Massage | Puget Sound Meditation Massage; Sleep More in Seattle Massage |
| Body treatment | Northwest Radiance Body Treatment; Detoxifying Mud Wrap |
| Nails | Manicure/pedicure services in the nail salon |
Who can use the spa and age rules
Spa facilities such as the co-ed Relaxation Lounge and locker rooms require guests to be at least 16 years old. That means guests younger than 16 should not expect access to the lounge, steam/sauna or locker areas even if receiving treatments.
Massage and facial treatments can be booked for guests aged 12 and older, but anyone 12–17 must be accompanied by a parent or guardian who signs a waiver and is physically present during the treatment. Nail services are available for all ages.
- Spa facilities (lounges/locker rooms): 16+ only
- Massage & facial treatments: minimum age 12 (12–17 require parent/guardian present and waiver)
- Nail services: available to all ages
| Service/facility | Minimum age |
|---|---|
| Spa lounges & locker rooms | 16 |
| Massage & facial treatments | 12 (with parent/guardian for ages 12–17) |
| Nail services | No minimum age listed |
Spa facilities to expect
The Spa includes a co-ed Relaxation Lounge with light refreshments, separate Women's and Men's locker rooms that feature steam and sauna access, and a nail salon. The couples' treatment suite offers side-by-side services with a view toward Elliott Bay.
The spa layout and amenities reflect the refreshed 6,000-square-foot design the hotel describes; the property also lists light refreshments in the relaxation area.
- Co‑ed Relaxation Lounge (light refreshments)
- Women's Locker Room: sauna and steam room
- Men's Locker Room: steam room
- Couples' treatment suite with Elliott Bay view
- Nail salon
| Facility | Feature |
|---|---|
| Relaxation Lounge | Co‑ed; light refreshments |
| Locker rooms | Separate Men's and Women's rooms with steam/sauna |
| Couples' suite | Side‑by‑side massages with view |
Pool, pool bar and how that relates to spa visits
Four Seasons Hotel Seattle operates a rooftop heated infinity-edge pool with a whirlpool/hot tub on the terrace facing Elliott Bay. The pool is open daily from 6:00 AM to 10:00 PM and is reserved for overnight hotel guests and Four Seasons Private Residences guests; day passes are not available.
INFINITY pool + bar provides seasonal poolside food and drink service (typically Memorial Day through Labor Day for the bar) and is for hotel guests only. Note that pool access and spa-facility access have separate age rules: pool guests under 18 must be accompanied by an adult, while spa facilities require 16+ as noted earlier.
- Rooftop infinity-edge pool hours: 6:00 AM–10:00 PM (seasonal operation)
- Pool length/depth listed in hotel materials (approx.): ~40 ft long, 4 ft deep, plus whirlpool/hot tub
- INFINITY pool + bar serves seasonal food and cocktails (poolside bar hours are seasonal)
| Amenity | Access / Age rule |
|---|---|
| Rooftop pool & hot tub | Overnight guests only; children under 18 must be accompanied by an adult |
| INFINITY pool + bar | Hotel guests only; seasonal food/drink service |
| Spa facilities | Guests 16+ for lounges/locker rooms |
Fitness centre, locker rooms and aftercare
The Fitness Centre is open 24 hours for hotel guests and includes Peloton bikes, cardio and strength equipment, and a eucalyptus steam room. Fitness locker-room hours are listed separately as 8:30 am–8:00 pm.
Fitness access is complimentary for hotel guests; the spa and fitness locker rooms have different operating hours and different age/access rules, so check with the hotel or spa when you schedule services to coordinate timing.
- Fitness Centre: open 24 hours for hotel guests
- Equipment includes Peloton bikes, free weights, cardio machines and strength-training gear
- Fitness locker-room hours: 8:30 am–8:00 pm
- Complimentary for overnight guests
| Facility | Hours |
|---|---|
| Fitness Centre | 24 hours |
| Fitness locker rooms | 8:30 am–8:00 pm |
| Spa facilities | See Spa hours (8:30 am–7:30/8:00 pm) |
Practical tips: booking, arrivals and combined plans
Reserve spa treatments in advance, especially for weekend times or couples' suite bookings. The hotel recommends reservations for Goldfinch Tavern as well; if you plan to dine and use spa or pool facilities the same day, confirm timing with spa and dining to avoid overlap.
Standard hotel check-in is 3:00 PM and check-out is 12:00 PM (noon). The hotel offers a complimentary house car for short downtown trips and provides valet parking for a surcharge; confirm parking and pet policies with the property if these are important to your plans.
- Book spa treatments in advance—weekends and couples' suite can fill earlier
- Check-in: 3:00 PM; Check-out: 12:00 PM
- Complimentary house car is available for nearby downtown trips
- Valet parking and EV charging are available for a surcharge; pet policies vary—confirm directly
| What to confirm before arrival | Why |
|---|---|
| Spa appointment time & any age permissions | To ensure parent/guardian availability for minors and lounge access |
| Pool seasonality and bar service dates | Poolside food/drink service is seasonal and weather-dependent |
| Valet parking & pet policy | Fees, EV charging and pet acceptance can vary |
