Star Plunge | Thermopolis

Star Plunge is an indoor water park located in Thermopolis, Wyoming, USA. It is situated within the Hot Springs State Park.

Visual Characteristics

The facility is a large, enclosed structure with a translucent roof allowing natural light. Inside, the main attraction is a large pool area with various water features, including slides, a lazy river, and a children's play zone. The pool water is a pale blue, characteristic of heated mineral water. Surrounding the pool are concrete decks and seating areas.

Location & Access Logistics

Star Plunge is located at 1110 N. 8th Street, Thermopolis, WY 82443. It is approximately 1.5 miles north of the Thermopolis city center. Access is via North 8th Street, which connects to US Highway 20. Ample parking is available on-site, free of charge. Public transport options are limited; the Thermopolis Public Transit system may offer routes that pass near the park, but direct service is not guaranteed.

Historical & Ecological Origin

Star Plunge is part of the Hot Springs State Park, which utilizes the natural geothermal hot springs of the Big Horn Basin. The park was established to preserve and provide public access to these mineral-rich waters. The specific construction date of Star Plunge is not publicly documented, but it operates as a modern facility within the historic park setting.

Key Highlights & Activities

Activities include swimming in the heated mineral water pool, riding water slides, floating on the lazy river, and utilizing the children's water play area. The park also features hot tubs and a separate adult-only soaking pool.

Infrastructure & Amenities

Restrooms and changing facilities are available. Shade structures are present in designated areas. Cell phone signal (4G/5G) is generally available within the facility. Food and beverage concessions are located inside the park.

Best Time to Visit

The park is open year-round. For optimal lighting for photography, midday hours when the sun is highest offer the most direct illumination through the roof. Weather is not a factor for indoor activities. High or low tide is not applicable.

Facts & Legends

The mineral waters used in Star Plunge are believed by some local traditions to have therapeutic properties due to their high mineral content, including sulfate, calcium, and magnesium. The water temperature is maintained at a consistent 86-90 degrees Fahrenheit.

Nearby Landmarks

• Hot Springs State Park Bath House (0.2km South)
• Wyoming Dinosaur Center (1.8km Southwest)
• Big Horn River (0.7km East)
• Thermopolis Town Hall (1.6km Southwest)