Hotel TerracottaIndependent travel guide
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Desert Hot Springs · about 20 min from Palm Springs · checked October 2026

Hotel O2

The renamed O Spa: a 21+ clothing-optional hotel with three warm mineral pools, couples-only day passes and a mixed recent review record.

Photo: Ev / Unsplash

Researched by the Hotel Terracotta editorial desk · Edited by · Official booking, day-pass and conduct pages rechecked October 27, 2026 · Research-based guide, not a first-hand stay

Hotel O2 is the renamed O Spa, a 21+ clothing-optional hotel built around warm, sulfur-free mineral water in Desert Hot Springs. It is more social than Mi Kasa: DJs on some weekends, a pool club with couples-only day passes, and couples-only themed parties. Its independent reviews are the weak point. Six of the ten most recent on Tripadvisor are one-star, and most of those complain about upkeep.

Who it’s for

Couples who want warm pools, a social crowd on weekends and the option of a day visit, and who will check recent reviews before they book. Everyone must be 21 or older with valid photo ID. Clothing is optional in the designated outdoor pool areas, and you cover up inside the hotel.

It is not a quiet soaking retreat on weekends, and it is not a naturist club. The pool club’s rules prohibit sexual or explicit conduct, but some reviewers describe a lifestyle-leaning crowd, and the hotel advertises a couples-only, invitation-based masquerade weekend. If you want calm, go midweek or choose Mi Kasa.

The day passes we found on the hotel’s site were sold per couple only. The site does not publish a single-guest price, so solo visitors should ask before they plan around a day pass.

Day passes (Club H02)

Date checkedCouples day pass
Wednesday, October 28, 2026$80 plus a $2 ticket fee
Sunday, November 1, 2026$100 (registration closed when checked)

Hours are 10 am to 10 pm Monday to Thursday and 10 am to midnight Friday to Sunday. Passes are sold online only, never at the door, and the hotel requires pre-registration and club membership for these days. Day beds ($35–50), cabanas ($75–175) and day rooms ($150–200) are paid add-ons. Everything is nonrefundable: cancellations and no-shows forfeit the full price, weather included. No outside alcohol or coolers.

The water and the rooms

The hotel lists a 50-foot main pool at 86–88°F, a sheltered jacuzzi at 100–104°F, a soaking pool at 95–98°F and outdoor mineral showers, open around the clock for overnight guests. There is a spa, a guest kitchen and lounge, grills and fire pits.

The room count depends on which page you read. The booking listing says twenty themed rooms, another page says 18 rooms plus a bungalow, and Tripadvisor lists 16. The largest unit named on the site is the Bond Bungalow, with two bedrooms and two baths. Room rates change by date and are only shown in the booking engine. Check-in is at 4 pm.

Groups can book the whole hotel. Takeovers hold up to 50 overnight guests or 200 event guests and start at $4,000 a night in the off season, so check the calendar before planning a quiet stay.

What recent guests say

Tripadvisor still files the property under its old name, The O Spa: ★ 3.9 from 71 reviews (October 27, 2026). That average flatters the recent record. Six of the ten most recent reviews, from 2022 to 2025, are one-star. They describe a dirty or green pool, run-down rooms, an unstaffed front desk and disputes over refunds and extra charges. The good reviews, including a five-star stay in July 2025, praise the mineral water, the private grounds and the owners. One 2023 reviewer said other guests ignored the pool club’s conduct rules. The hotel has since been renamed and, by its own account, given a new look, so read the newest reviews first.

Where it is

11740 Mesquite Avenue in Desert Hot Springs, north of Interstate 10. The hotel puts it at about 18 minutes from Palm Springs. Plan on driving or a taxi; it is not walkable from any Palm Springs neighborhood.

How it compares

Choose Mi Kasa Hot Springs for a calmer mineral-springs stay with higher guest ratings (★ 4.8 from 151 Yelp reviews). Choose Sea Mountain Inn only if both of you want an openly lifestyle resort. Choose Glen Eden Sun Club for traditional, non-sexual naturism, about 75 road miles west. All three Desert Hot Springs options are compared in the Desert Hot Springs guide.

Quick answers

Is Hotel O2 the same place as The O Spa?

Yes. Hotel O2 is the new name for The O Spa + Resort at 11740 Mesquite Avenue in Desert Hot Springs. Its booking listing still uses both names, and Tripadvisor lists it as The O Spa.

How much is a Hotel O2 day pass?

Day passes are sold online per couple. On the dates checked in October 2026 they cost $80 plus a $2 fee on a Wednesday and $100 on a Sunday. They are nonrefundable and not sold at the door.

Is Hotel O2 a swinger resort?

It doesn’t call itself one, and its pool-club rules prohibit sexual or explicit conduct. It does run couples-only themed parties, and some reviewers describe a lifestyle-leaning crowd. Couples who want a calm stay should go midweek or choose Mi Kasa.

Sources

All sources were read on October 27, 2026. Day-pass prices change by date and event. Spotted something out of date? Tell us.