HotPrimitive

Apollinaris Spring

WY

About Apollinaris Spring

Apollinaris Spring is a soothing hot spring nestled within Yellowstone National Park, offering a serene stop along the Grand Loop Road. Known for its mineral-rich waters, the spring exudes a natural warmth and earthy aroma that connect you to Wyoming’s geothermal marvels. Its primitive charm invites you to appreciate the raw beauty of one of the iconic hot springs in Wyoming.

Getting There

The spring is easily accessible by car with ample parking available right off the Grand Loop Road. No hiking is required, making it a convenient spot to visit for visitors exploring Yellowstone’s diverse landscapes. The drive-up access means you can experience this Wyoming swimming hole even during chilly seasons.

What to Expect

At Apollinaris Spring, the water is comfortably warm, surrounded by a quiet picnic area shaded by native trees. Though the mineral water is not safe for drinking, it creates an intriguing natural setting to relax and connect with nature. You’ll find a peaceful atmosphere with minimal crowds, allowing an authentic primitive hot springs experience.

Tips for Visitors

Plan your visit year-round, but bring sturdy footwear and weather-appropriate clothing as geothermal areas can be slippery. No entrance fee is charged, but respect the natural environment and refrain from bathing to preserve this delicate Wyoming swimming hole. Carry water for hydration, since the spring water is not potable.

Last updated December 20, 2025
Apollinaris Spring

Loading map...

Access

Drive Up

Parking

Ample

Fee

Free

Cell Service

Unknown

Best Season

Year Round

Nearby Springs

View all in WY