Grand Prismatic Spring
May–Jun, Sepbest time
2 daysplan for
7 h 17from Boise
Yeswith kids
Freeentry
Grand Prismatic SpringYour own route
Plan a trip here →
Famous for its colorful hot spring
Practical
At a glance
- Established
- 1872
- Open
- Year-round, best viewed in summer
- Accessibility
- Viewing area accessible via boardwalk
- Opening hours
- Year-round, best viewed in summer
- Price
- Free
Photo: Wikipedia / Wikimedia Commons