If you’re searching for things to do in Hilo when it rains, you’re not alone. Rain is part of the charm of Hilo—but it can make outdoor plans tricky.
One of the best indoor activities in Hilo is the ʻImiloa Astronomy Center, a unique planetarium that blends astronomy, Hawaiian culture, and interactive exhibits.
📍 Location & Visitor Info
ʻImiloa Astronomy Center
600 ʻImiloa Place, Hilo, HI
✔️ Free parking available
Pro tip: Buy your tickets online before 9:00 AM on the day of your visit.
Why ʻImiloa Is One of the Best Things to Do in Hilo
When my travel nurse friend and I had a few rainy days in Hilo, we were looking for indoor activities—and ʻImiloa ended up being the perfect choice.
Unlike a typical planetarium, ʻImiloa connects Hawaiian culture and astronomy, creating a meaningful and educational experience. It’s ideal for:
- Families with kids
- Couples
- Solo travelers
- Anyone interested in science or culture
Family-Friendly Indoor Activity in Hilo
If you’re visiting Hilo with kids, this is one of the best family-friendly attractions in Hilo.
Inside you’ll find:
- Interactive games and puzzles
- Hands-on exhibits
- Educational videos
It’s engaging without feeling overwhelming, and kids can actually participate instead of just observe.
The Dome Theater Experience 🌌
The highlight—and one of the top indoor attractions in Hilo—is the dome theater.
- Shows run about 30–45 minutes
- Seats are angled for comfortable viewing
- The immersive dome makes you feel like you’re under the stars
If you’re looking for a planetarium in Hawaii, this is one of the most unique experiences you’ll find.
The One Sky Project: A Must-See Show
We watched The One Sky Project, and it was easily the most memorable part of our visit.
The show explores how different cultures interpret the same stars—specifically what many of us know as Orion’s Belt.
Here’s how different cultures see it:
- Japan: A war drum, with stars representing rival clans- even incorporates the red,ish tint of one of the corner stars.
- Ancient Greece: The hunter Orion, placed in the sky by Athena
- Indigenous Canada: A canoe with a wolf paddling across the sky
- Inuit traditions: A feather and thunderbird signaling seasonal changes
- Hawaiian culture: A story of a greedy king, fish, and the rainy season
It’s a beautiful mix of storytelling, culture, and astronomy—perfect if you’re looking for educational things to do in Hilo.
Learn Navigation the Polynesian Way
We also attended a wayfinding presentation, which taught us how to navigate using the stars—something Polynesian voyagers have done for generations. Moana would have been proud.
If you’re interested in Hawaiian culture and navigation, this is a fascinating experience.
Other Shows & Activities at ʻImiloa
ʻImiloa offers several rotating shows, making it worth checking the schedule:
- One World, One Sky (great for kids on weekends)
- Expedition Reef
- Spark the Universe in Us
A Personal Reflection ✨
One thing I didn’t expect from visiting ʻImiloa was how emotional it would feel.
Looking up at the stars reminded me of times I’ve lived far from home—in places like Russia or even here in California—and felt homesick.
There’s something grounding about realizing that no matter where you are, you’re looking at the same sky as your loved ones. That connection brings a quiet sense of comfort.
Final Thoughts: Is ʻImiloa Worth Visiting?
If you’re planning a trip and wondering about what to do in Hilo Hawaii when it rains, the ʻImiloa Astronomy Center should be at the top of your list.
✔️ Great for rainy days
✔️ Educational and interactive
✔️ Perfect for all ages
✔️ Unique blend of science and Hawaiian culture
It’s more than just a planetarium—it’s an experience that stays with you.
