Wailuku River State Park
Photo Credit: Sean Newsome

**IMPORTANT PARK NOTICES**

Monitor weather reports before your park visit!

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[OʻAHU] - UPDATE 4/19/25: He’eia State Park is CLOSED on Easter Sunday - Holiday. 4/22

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[KAUA’I]—UPDATE 4/19/25: Kalalau Trail, Nāpali Coast SWP has REOPENED. The Ha’ena shuttle has RESUMED.

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[MAUI] - UPDATE 4/17/25: Puaʻa kaʻa Wayside and Restrooms will be CLOSED for renovations April 21 thru May 12.

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[MAUI] - UPDATE 4/17/25: Makena State Park’s Black Sand Beach Access Road has REOPENED.

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[MOLOKA’I] - UPDATE 3/24/25: Pala’au State Park Pavilion: Due to demolition and renovation work, the pavilion will be closed from March 25 to May 31.

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[KAUAʻI] - UPDATE 3/21/25: Pā‘ula‘ula State Historic Site - Due to construction improvements, the park closure will begin starting March 24 until further notice.

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[OʻAHU] - UPDATE 3/18/25: Mauna ʻAla, Royal Mausoleum State Monument, will be undergoing improvements that may temporarily prevent vehicular access. Please check the Royal Mausoleum State Monument website for updates.

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[OʻAHU] UPDATED 3/18/25 – Diamond Head State Monument (DHSM): Partial Park Closures Hours with operating hours from 6:00 AM to 2:00 PM will occur from April 21 onwards Monday through Friday, (except holidays).  Normal Park Hours from 6:00 AM to 6:00 PM will resume on the Good Friday Holiday on April 18, and on Weekends. During Partial Park Closures Hours from 6:00 AM to 2:00 PM, the last reservation time slot for Parking and Entry and Entry Only will be 12:00 p.m. If you reserved at 12:00 p.m., you must enter the Park no later than 12:30 p.m. or you will be denied entry. The project began January 6, 2025, and will run until July 25, 2025, upon completion of the rock fall mitigation construction project at the Kahala Tunnel. Please check back for updates.

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[MAUI] UPDATE 3/4/25 - Polipoli Spring State Recreation Area: Beginning April 1, 2025, through April 30, 2025, the park, cabin campgrounds, and access road to Polipoli Forest Reserve will be closed due to tree mitigation work. 

Wailuku River State Park

[HAWAIʻI] UPDATED 5/13/24 – Wailuku River State Park: Rainbow Falls; tree trimming starts today until 6/7/24, the park will remain OPEN but some areas may be temporarily closed due to safety.

  • Picture of Wailuku River State Park
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Hours

Rainbow Falls: Daily During Daylight Hours

Boiling Pots: Daily 7:00am – 5:30pm

Gates lock at 6:00pm
Entrance Fee None

Description

Viewpoints of geologic and scenic interest along Wailuku River. There are two separate park areas.  Boiling Pots is a succession of big pools connected by underground flow or cascades and whose waters roll and bubble as if boiling. The exposed hexagonal columns that line the pools were formed by the slow cooling of basalt lava. The 80-foot Rainbow Falls is renowned for the rainbow formed from its mist many mornings. Legends say that the cave beneath the waterfall was the home of Hina, mother of the demigod Maui. (16.3 acres)

Location

Both park sections are accessed via Waiānuenue Avenue, downtown Hilo; Boiling Pots Area at the end of Peʻepeʻe Falls Drive; Rainbow Falls Area on Rainbow Drive.