The Boiling Pots
Where Monsters Hide and Heroes Battle
The Wild Water Show
Follow the path of Māui and Kuna 1.5 miles upstream. Turn from Waianuenue Avenue onto Peʻepeʻe Falls Road. You'll reach the second part of the state park.
From a safe cement overlook, the river shows a completely different face. Deep round pools sit carved in dark volcanic rock. The Wailuku River gets forced through these basins. They connect through waterfalls and underground channels.
When the river runs high after heavy Hilo rains, water churns wildly in these pools. Powerful whirlpools make them look like they're boiling hard.
Look upstream and left to see Peʻepeʻe Falls. The name means "hiding falls." Tall lava rock often blocks the view.
The gorge walls show amazing six-sided columns of basalt. They look like giant stone honeycomb. These formations frame the wild churning water. Another example of order meeting chaos.
Reading the Rock Story
The Boiling Pots area shows an even more complex rock story than Rainbow Falls. It's like a natural museum. You can see evidence of two different volcanic events thousands of years apart.
First Eruption
- 10,500 years ago
- ʻAnuenue lava flow
- Created deep pools
Second Eruption
- 3,100 years ago
- Punahoa pāhoehoe flow
- Smooth lava overlay
The deep bowl-shaped holes are carved from the same 10,500-year-old ʻAnuenue flow that makes Rainbow Falls. For over 7,000 years, the river worked on this hard basalt. Swirling rocks and sand slowly ground out these deep pools.
Then about 3,100 years ago, Mauna Loa erupted again. This time smoother lava called pāhoehoe entered the river channel. This newer Punahoa flow wasn't as big but still changed things. It flowed over and around older gray boulders from the ʻAnuenue flow. Today you can see these older rocks "frozen" inside the younger lava.
The six-sided columns formed when thick lava cooled slowly and evenly. As it cooled, it shrank. Cracks formed in the most efficient pattern. Six-sided shapes spread down through the rock. The result is the stunning wall you see today.
Māui's Final Battle
The Hero vs. the Dragon
The chase between Māui and Kuna ended here at the Boiling Pots. The moʻo fled upstream and hid in the deep connected pools. He thought he was safe from Māui's reach.
Māui couldn't strike the creature with his spear in the deep dark water. He needed a new plan. He called on his relative Pele, goddess of fire and volcanoes. Pele sent him ʻā. Red-hot lava stones from Kīlauea's fiery heart.
The Volcanic Strategy
Māui caught the volcanic rocks and threw them one by one into the pools where Kuna hid. The effect was instant and deadly. The hot stones made the water boil violently. Kuna was scalded in his hiding place. The boiling water forced him to the surface where Māui waited.
The hero finally killed the great moʻo. Its body washed downstream over Rainbow Falls. This proved to Hina that she was safe forever.
This battle explains the site's name. The "Boiling Pots" aren't just interesting geology. They're the exact pools that Māui and Pele heated with volcanic fire to defeat a monster.
Peʻepeʻe Falls: The Hiding Falls
Look upstream and left from the Boiling Pots overlook to spot Peʻepeʻe Falls. The name means "hiding falls" because tall lava rock formations often block the view. This waterfall adds another layer to the park's geological story.
The falls demonstrate how the Wailuku River continues to shape the landscape. Water finds weakness in the volcanic rock and exploits it over time. What you see today is just one frame in a geological movie that's been playing for thousands of years.
Best Viewing Tips
- Look upstream and to the left
- Best view after recent rains
- Bring binoculars for detail
- Rock formations may block view
Stay Safe and Respectful
The Wailuku River's beauty matches its danger. Learn essential safety rules and cultural protocols for visiting this sacred place.
Safety & Cultural Guide🌋 Boiling Pots Info
- Location: Peʻepeʻe Falls Rd
- Best After: Heavy rains
- Features: Volcanic pools
- Safety: View from overlook
🪨 Rock Formation Timeline
10,500 years ago
ʻAnuenue lava flow creates basalt foundation
7,000 years
River carves deep pools through erosion
3,100 years ago
Punahoa pāhoehoe flow adds layers
⚠️ Extreme Danger
Underground lava tubes create deadly whirlpools
Many skilled swimmers have drowned here. The pools hide invisible traps.
NEVER enter the water