Big Room Tour
What to Expect
Safety Advisory
The trail surface stays damp and can be slippery, especially on the slight inclines near the Hall of Giants — wear shoes with actual tread, not flip-flops, despite the easy rating.
There is no cell service underground. If someone in your group has a medical condition, let the ranger at the elevator know before heading in.
Trail Details
- 1
Take the elevator down rather than the Natural Entrance route if you want to save your legs for a slower, more deliberate loop through the Big Room itself — the Natural Entrance trail drops 750 feet and takes real energy you will want later.
- 2
Bring a light jacket even in July. The cave sits at a constant 56 degrees with high humidity, and after 90 minutes that chill works its way through a t-shirt fast.
- 3
The best photography happens at the formations farthest from the elevator entrance — Rock of Ages and the Painted Grotto see fewer crowds and have some of the most dramatic lighting in the entire chamber. A tripod is allowed and genuinely useful here since flash photography washes out the depth of the formations.
