Embark on Maunakea Stellar Explorer’s unique Big Island tour combining daytime solar viewing with nightfall stargazing from Mauna Kea’s summit. Experience waterfalls, lava tubes, and cosmic vistas in one unforgettable day.
More ways to explore the area's outdoor wonders
The journey begins in Hilo, where the soft hum of the Wailuku River and the lush greenery set the stage for a day steeped in natural wonders and celestial marvels. As your guide leads you through the historic waterfront, the first spectacle reveals itself—Rainbow Falls. This 80-foot twin waterfall summons misty rainbows that dance across the cascade’s emerald backdrop, daring you to pause and absorb the slow, tireless force of falling water.
Difficulty
moderate
Duration
7 hours
Fitness Level
Suitable for most fitness levels; involves some walking and altitude exposure, so moderate endurance recommended
Wildlife
History
Mauna Kea is considered sacred by Native Hawaiians and has served as a cultural and spiritual landmark for centuries.
Conservation
The tour respects Mauna Kea's protected status; visitors are encouraged to follow Leave No Trace principles to preserve its delicate ecosystem.
Reserve your spot on the Maunakea Stellar Explorer HILO today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Dress in layers for summit conditions
Temperatures at Mauna Kea’s summit can be near freezing even in summer; bring warm jackets, hats, and gloves to stay comfortable.
Wear sturdy closed-toe shoes
Exploring caves and rugged terrain requires supportive footwear to navigate uneven surfaces safely.
Hydrate before and during the trip
High elevation and physical activity increase dehydration risk; carry water and sip regularly.
Check health conditions before booking
Not recommended for participants with heart or serious medical issues due to altitude and night excursion demands.
Layered Clothing
To adapt to wide temperature changes from warm valley to chilly summit.
Closed-Toe Hiking Shoes
Provides support and protection during lava tube exploration and uneven terrain walks.
Headlamp or Flashlight
Useful for navigating darker sections of lava tubes safely.
Sun Protection
Sunglasses and sunscreen protect against UV rays during daytime solar viewing and outdoor stops.
summer