Summary
Home to nearly a million inhabitants, Oahu is the third-largest among the Hawaiian Islands and serves as the location of the state’s capital, Honolulu, situated on the southeast coast.
With close to 600 square miles of area, it stands out as one of the largest islands within the United States.
Oahu features approximately 230 miles of coastline and is predominantly characterized by two volcanic mountain ranges – the Wai’anae and Ko’olau.
Due to the island’s substantial annual rainfall, both mountain ranges and the intervening valleys are adorned with lush, verdant vegetation, and a multitude of waterfalls can also be found here.
It is crucial to recognize that all untreated freshwater in Hawaii may potentially harbor the Leptospirosis bacteria, rendering it hazardous for recreational swimming.
1. Manoa Falls
Strategically situated just a few miles from Honolulu, Manoa Falls stands as one of the island’s premier attractions. It offers visitors an introduction to the diverse natural beauty of Oahu.
The falls can be accessed via an easy trail that spans under two miles roundtrip, leading visitors through a captivating forest of banyan trees and bamboo before arriving at the waterfall.
The island is known for its unpredictable and sudden rain showers, potentially making the trail slippery; therefore, it is advisable to tread carefully.
At the trail’s conclusion, visitors are rewarded with a breathtaking view of the 150-foot waterfall. However, swimming in the pool at its base is discouraged due to the presence of harmful organisms; it is recommended to utilize hotel pools unless emergency room options are factored into the schedule.
2. Upside-Down Waterfall
Should viewing a waterfall from an unconventional perspective appeal to you, then the Upside-Down Waterfall should be prioritized on your itinerary.
Many of Oahu’s waterfalls are situated in remote locations, making them difficult to view apart from aerial perspectives; however, the Upside-Down Waterfall is conveniently visible from Pali Highway.
This waterfall possesses a unique characteristic: the water is blown by strong winds before it hits the ground, resulting in an unusual appearance.
Following heavy rain, this waterfall becomes particularly striking. While it can be glimpsed from the road, designated safe stopping areas are limited, so it is advisable to keep cameras ready for spontaneous captures.
3. Lulumahu Falls
If the notion of ‘off the beaten path’ excites you, then visiting Lulumahu Falls is likely to be a worthwhile endeavor.
This secluded waterfall tends to escape the notice of the majority of tourists, allowing for a quieter experience.
However, it is essential to obtain a permit from the Hawaii Department of Forestry and Wildlife, as the falls are located on state land in proximity to the Kaniakapupu Ruins, which contains remnants of a former Hawaiian king’s summer residence.
There are two trailheads that lead to the falls, although they are not clearly marked. The easiest to discover is located at the end of Old Pali Road; from there, the path is adequately indicated to guide you to the falls in approximately one hour.
4. Likeke Falls
While Likeke Falls measures a modest 15 feet in height by Hawaiian standards, it remains a popular destination due to its relative accessibility.
Situated approximately 10 kilometers northeast of Honolulu, the trailhead is easily reachable, and parking is readily available.
If you observe other vehicles but are uncertain about the trail’s entrance point, remain patient; it is a popular hiking area among locals who are generally willing to assist with directions.
Visitors have noted that the red earth surface becomes very slippery during and following rain, so it is advisable to avoid wearing slippery footwear.
Additionally, it is wise to carry water bottles, a raincoat, and insect repellent, as mosquitoes can be particularly bothersome at certain times of the year.
5. Maunawili Falls
One of the most conveniently accessible and consequently popular tourist sites on Oahu is Maunawili Falls.
If feasible, it is advisable to plan your visit to the falls on weekdays to evade the larger crowds typically present on weekends.
The trailhead is a short, picturesque drive from Waikiki; once there, the roundtrip hike to the falls is less than three miles. However, conditions along the trail can become hazardous due to the slippery red mud, which can complicate secure footing, especially after a rain.
Those who persevere through these challenges will be rewarded with an impressive 25-foot waterfall and captivating views of surrounding lush plant life and mountains.
6. Jackass Ginger Pool Falls
With a name like Jackass Ginger, it naturally attracts curiosity regarding this remarkable waterfall in Oahu.
Located in Honolulu’s Nu’uanu neighborhood, Jackass Ginger Falls is a scenic 10-foot waterfall and swimming area enjoyed by both tourists and locals.
According to local legends, Hawaiian royalty once frequented this site to cool off on warm days.
The falls can be accessed via the Judd Memorial Trail, which is preserved by the state for its historical significance and tourist potential.
This trail parallels the Nu’uanu Stream and is approximately a half mile from the trailhead to the falls, although navigating it can be challenging due to poor markers and overgrown paths. Despite its modest size, the pool below is deep enough for swimming, although caution is warranted due to health warnings.
7. La’ie Falls
To access the trail leading to La’ie Falls, a permit is necessary, which should be obtained prior to your hike.
Permits can be acquired at the Hawaii Reserves, Inc. office situated in the shopping center in La’ie, though the associated costs may vary.
The trail is nearly eight miles round trip and is not recommended for those who are very young, elderly, or unfit, as it features rocky and slippery sections, particularly after rainfall. Depending on physical ability and determination, the hike can take up to four hours, leading to falls that reach approximately 15 feet in height.
The journey through lush vegetation and diverse geological features makes this trek both memorable and physically demanding.
8. Waimea Falls
Known also as Waihi Falls, these falls rank among the most accessible on Oahu. Their location near botanical gardens and archaeological sites in the Waimea Valley makes them a valuable addition to any itinerary.
A nominal entrance fee is required to access the park, contributing to the preservation efforts by the non-profit organization responsible for maintaining these natural sites.
The trail to the falls spans nearly four miles, but the majority of the route is relatively flat and paved, allowing for a pleasant stroll through picturesque gardens.
The falls are part of the Kamanui Stream and reach just under 50 feet in height.
9. Kapena Falls
Kapena Falls, located on the Kapena Falls Trail, is an easy drive from downtown Honolulu and offers splendid photo opportunities for nature enthusiasts and aspiring photographers.
Although the water appears brownish-red due to the upstream red earth, the pool beneath the 30-foot drop is clean and refreshing, as reported by those who have swum there.
The area is adorned with large boulders and hanging vines, which provide a prehistoric ambiance that may give one an impression of a hidden world of ancient creatures.
With its captivating yet eerie atmosphere, the site has been chosen as a filming location for several movies and television series, including the popular show Lost.
10. Waikahalulu Falls
If, like many, you presumed that urban waterfalls did not truly exist, a visit to Waikahalulu Falls may challenge that notion.
Located within the Lili’uokalani Gardens in the bustling urban core of Honolulu, this waterfall spans just over 10 feet in height.
The water cascades down a broad rock ledge, creating a tranquil pool below.
Though somewhat altered from its original state, this location was reportedly a preferred retreat for Hawaiian Queen Lili’uokalani, after whom the gardens are named.
A recent initiative has been introduced to restore the area to a near-pristine condition, aiming to attract some native plant species that have become scarce.
This site serves as an excellent venue for a picnic or as a peaceful retreat from the urban pace, even if just for a few hours.
11. Hamama Falls
Another exceptional waterfall on Oahu, Hamama Falls is situated near Kane’ohe. A relatively easy hike of around two miles leads to these falls.
Due to their less recognized status, you may not encounter large crowds at Hamama Falls.
If you opt to hike, you will not regret the decision as the stunning backdrop of the 40-foot waterfall presents an ideal setting to read, sketch, or simply relish in the tranquility.
For those who may find a four-mile hike to be daunting, an easily accessible swimming area is situated only a few minutes from the trailhead.
Bear in mind that the trail is established on state property, and technically a permit is required, though most visitors do not pursue this.
