Waterfalls around Waimanalo offer diverse natural experiences on Oahu. While Waimanalo itself does not feature prominent waterfalls directly within the town, several notable cascades are accessible in nearby areas. The region is characterized by lush jungle environments and valleys, providing a backdrop for these natural attractions. Visitors can explore a variety of trails leading to waterfalls, each with distinct features.
Last updated: September 1, 2026
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This is a rewarding up-stream trail with beautiful waterfalls and a hidden crater along the way. The trails can be pretty slippery after storms, so this trail would be best to run in dryer conditions.
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The waterfall itself is beautiful with the thick jungle and mossy backdrop. The mosquitoes throughout Lyon Arboretum and the ʻAihualama Falls Trail are pretty bad!
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Maunawili Falls is a beautiful waterfall in the middle of the jungle. The water first flows down a rocky path and then cascades into the pool below, where you can go for a swim. The main trail is closed at the moment, but the waterfall can still be reached via other trails (e.g. from Pali Highway).
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Usually, you can watch the water running down a beautiful rocky and moss covered wall at ʻAihualama Falls. Depending on the recent amount of rain in the valley, they might be dry or carry a lot of water!
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Reaching Luaʻalaea Falls might be a little harder than nearby Mānoa Falls, but thanks to its lesser popularity, there's a good chance that you will have the entire waterfall to yourself or just share with a handful of people. The waterfall itself is beautiful, especially if there was some rain before, and is a great spot for a little refreshment under the falling water.
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Caution: Pretty dangerous trail for beginners. Very muddy, slippery, overgrown and sometimes you have to climb steep walls. Scheduling, KM and GPS tracking does not seem to have been recorded correctly by Komoot either. It's slow going here. Definitely plan more time.
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Main trail is closed now, but still reachable via side trails from Pali. Great 10 foot jumps into deep pool. Side cliffs can be jumps of 35 feet but water is deep and boulder free. The hike down from the main trail is very steep and muddy.
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The jungle on the Maunawili Falls Trail is beautiful. However, you have to be careful because the path is full of roots and often slippery. You have to cross the stream several times. You should also not go swimming with open wounds, since the water can contain leptospirosis bacteria.
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No, Waimanalo itself does not feature prominent waterfalls directly within the town. However, several notable and highly-regarded waterfalls are accessible in nearby areas on Oahu, offering rewarding experiences for visitors.
Some popular waterfalls accessible from Waimanalo include Maunawili Falls in Kailua, ʻAihualama Falls, and Luaʻalaea Falls. Waimano Falls, though further away near Pearl City, is also a well-known destination.
The difficulty varies. Trails like the one to Maunawili Falls can be challenging, especially after rain when they become muddy and slippery. The Ka'au Crater Trail, which features waterfalls, is considered pretty dangerous for beginners due to mud, steep climbs, and overgrown sections. Waimano Falls also involves an adventurous hike with steep, muddy terrain.
Yes, some waterfalls, like Maunawili Falls, have a deep pool suitable for swimming. Luaʻalaea Falls also offers a chance for refreshment under falling water. However, always exercise caution and be aware of potential risks like leptospirosis bacteria in the water, especially if you have open wounds.
Maunawili Falls is a beautiful waterfall in the middle of the jungle with a swimming pool. The trail can be very slippery and muddy, full of roots, and requires stream crossings. While the main trail is currently closed, the waterfall can still be reached via side trails, for example, from Pali Highway. Be aware of leptospirosis bacteria in the water.
ʻAihualama Falls features water running down a beautiful rocky and moss-covered wall, set against a thick jungle backdrop. The flow depends on recent rainfall, so it might be dry or carry a lot of water. Be prepared for mosquitoes, which can be quite prevalent throughout the Lyon Arboretum and on the trail.
Yes, Luaʻalaea Falls is generally less popular than nearby Mānoa Falls, offering a more secluded experience. If there has been recent rain, the waterfall is particularly beautiful and provides a great spot for a refreshing dip.
The best time to visit Oahu waterfalls for strong flow is typically after light rainfall. Heavy storms can make streams too strong for swimming, while dry spells can reduce falls to a trickle. Oahu experiences a wet season from roughly November to April, which generally brings more consistent waterfall activity.
Yes, the Ka'au Crater Trail is a challenging option that includes beautiful waterfalls and a hidden crater. This upstream trail can be very slippery and dangerous after storms, so it's best attempted in drier conditions. For more challenging hikes, you can explore the Hiking around Waimanalo guide.
Beyond waterfall hikes, you can find a variety of outdoor activities. There are easy hikes around Waimanalo, as well as more extensive hiking routes. For cyclists, there are also numerous road cycling routes in the area.
Given the often muddy and slippery conditions, especially on trails like Maunawili Falls or Ka'au Crater, it's advisable to wear sturdy, closed-toe shoes with good grip. Bring plenty of water, insect repellent (especially for areas like ʻAihualama Falls), and consider a waterproof bag for electronics. If you plan to swim, bring a towel and a change of clothes.
Permit requirements can change, and some trails, particularly those on private or restricted land, may require them. For example, access to Lulumahu Falls often requires a permit. Always check the latest regulations and access requirements for specific trails before you go, especially for trails like Maunawili Falls where the main access has been altered.


Happy to travel a little further afield? Then browse these guides for the best waterfalls around Waimanalo: