
About 20 minutes south of Jackson, over a red bridge across the Snake River, a nonprofit conservancy runs this soaking park on 95 acres. Four mineral pools sit at 100-104 degrees, with a children's pool at 80-90 and a cold plunge at 48-51; two pools are ADA-accessible. You soak in 105-minute sessions, five a day starting at 9:00 AM, and reservations are strongly recommended because walk-ins get in only if there's room. It's closed Wednesdays. Adults pay $26.25, residents $18.75, and under-2s are free. Book the session first and plan the rest of the day around it.
From Astoria Park Conservancy, last checked 19 September 2026.