Castle Hot Springs
A historic adults-only resort in the desert foothills about an hour north of Phoenix, with three terraced pools fed by natural hot springs. The pools are open only to overnight guests aged 18 and older, and there are no day passes.
- Water
- 75–108°F
- Getting there
- Drive up; the last 7 mi are a dirt road that can be rough, high-clearance vehicle recommended; ride-share services do not serve the resort
- Children
- 18+
- Clothing
- Swimsuits required
- Cost and hours
- See current prices and hours on the official site
- Pools
- Three cascading spring-fed pools (top 104–108°F, second 96–102°F, third 75–90°F), private outdoor soaking tubs, and a cold plunge
- Reservations
- Required
- Stay the night
- Resort rooms on site
- Managed by
- Private resort
Good to know. The final 7 miles are a rough dirt road; a high-clearance vehicle is recommended.
In any natural hot spring, keep your head above the water. Health officials advise it because of a rare amoeba that can enter through the nose.
New to hot springs? A slow soak is a five-step way to enjoy the water safely.
Good for: quiet soaking, winter trip. Something out of date? Let us know and we’ll check it.
No hot spring nearby?
Warm-water sessions at your own pool, or your community’s, in and around Flagstaff, by request. And there are small water practices you can do at home, in a bath.