IAO VALLEY STATE MONUMENT

PARKS
December 22, 2024
797 ft 20.88, -156.54

High Surf Warning
2024-12-23T06:00:00-10:00

...HIGH SURF WARNING FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU MOLOKAI AND NORTH FACING SHORES OF MAUI... ...HIGH SURF WARNING FOR WEST FACING SHORES OF THE BIG ISLAND... ...HIGH SURF ADVISORY FOR NORTH FACING SHORES OF THE BIG ISLAND... .An extended period of hazardous surf and beach conditions will persist through Sunday night along exposed north and west facing shores due to overlapping, winter-caliber northwest swells (315-330 degrees). The current swell will be on a slow decline tonight, but the largest swell in the recent series is expected to arrive in the predawn hours, rapidly rise and peak through the day Sunday, and then gradually ease Sunday night and Monday. * WHAT...Surf of 22 to 35 feet tonight, building to 40 to 50 feet Sunday along north facing shores of Niihau, Kauai, Oahu, Molokai and Maui. Surf of 12 to 20 feet tonight, building to 25 to 35 feet Sunday along west facing shores of Niihau, Kauai, Oahu, and Molokai. Surf of 6 to 10 feet tonight, building to 8 to 12 feet along west facing shores of the Big Island. * WHERE...North and west facing shores of Niihau, Kauai, Oahu, and Molokai, north facing shores of Maui, and west facing shores of the Big Island. * WHEN...Until 6 AM HST Monday, with a peak expected through the day Sunday. The best chance for coastal impacts to properties and roadways will be during the peak daily high tides through the early morning hours. * IMPACTS...Very High...Expect ocean water surging and sweeping across beaches, coastal benches, and lava flows creating the potential for impacts to coastal properties and infrastructure, including roadways. Powerful longshore and rip currents will be present at most beaches. Large breaking waves and strong currents may impact harbor entrances and channels causing challenging boat handling.


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Iao Valley State Monument is a popular tourist destination located in the state of Hawaii. It is situated in the West Maui Mountains and is known for its lush greenery, beautiful waterfalls, and historical significance. There are several reasons to visit the monument, including hiking, picnicking, and sightseeing.

One of the main points of interest in the Iao Valley State Monument is the Iao Needle, a 1,200-foot tall peak that stands at the end of the valley. Visitors can hike through the forest trails to get a closer view of this natural landmark. The park also features a botanical garden with various plant species and a stream that runs through the valley.

The Iao Valley State Monument holds historical significance as it was the site of the Battle of Kepaniwai, where Maui warriors fought against invading forces led by King Kamehameha I. Today, visitors can see the site of the battle and learn about its significance through interpretive exhibits.

Interesting facts about the area include that it was once considered a sacred place for the Hawaiian people, and it was believed that the spirits of their ancestors resided in the valley. The Iao Valley State Monument was also designated as a National Natural Landmark in 1972.

The best time of year to visit the Iao Valley State Monument is during the drier months of April to October. It is important to note that the park may be closed during heavy rains or inclement weather.

Overall, the Iao Valley State Monument is a must-visit destination for those seeking natural beauty and historical significance in Hawaii.

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