Before you decide to join the crowds scaling Diamond Head, consider these five underrated hikes in Oahu. You’ll discover cascading waterfalls, lush forests, and epic panoramic views without the tourist traffic. Plus, we’ve got the distances covered in both miles and kilometers for your convenience.
1. Pu'u Pia
- Distance: 2 miles (3.2 km)
Nestled in the heart of Manoa Valley, this trail is perfect for beginners and those seeking a quick escape into nature. The trail is shaded by a canopy of koa and paperbark trees, providing relief from the sun. As you weave through the forest, you’ll be rewarded with sweeping views of Waikiki, Wa'ahila Ridge, and the Koolau summit. But watch out for muddy conditions after a rain—good traction is a must! This hike is a perfect warm-up for those new to Oahu’s trails.
2. Pu'u o Hulu (Pink Pillbox)
- Distance: 2 miles (3.2 km)
Skip the crowded Lanikai Pillbox and opt for this hidden gem on the Waianae Range. The steep trail is dotted with abandoned WWII bunkers, offering a touch of history along with the breathtaking views. Whether you’re scaling rockfaces like a pro or taking the contour trail, you’ll be treated to a stunning overlook of the Waianae coastline. The combination of adventure and views makes this hike a must for any outdoor enthusiast.
3. Kalauao
- Distance: 4 miles (6.4 km)
After a good rain, this trail transforms into a trekker's paradise with its natural swimming holes and waterfalls. Starting from the Aiea Loop Trail, the hike takes you through a diverse landscape of guava, eucalyptus, and mountain apple trees. The trail’s highlight is a serene waterfall, perfect for a refreshing dip. Just remember to bring sturdy shoes, as you’ll be crossing streams multiple times.
4. Ualaka'a
- Distance: 1 mile (1.6 km)
For a short but scenic adventure, Ualaka'a offers a quick escape into Oahu’s lush landscape. Located in Pu'u 'Ualaka'a State Park, this trail winds through banyan arches and Cook pines, leading to a lookout with panoramic views of Manoa Valley and Waikiki. The trail also connects to other popular routes, making it a versatile choice for those looking to explore more.
5. Wahiawa Hills
- Distance: 4 miles (6.4 km)
Don’t be fooled by the short distance—this hike is packed with challenges. The loop trail takes you through streams, ridges, and a steep hill climb before reaching the Kaukonahua Stream, the longest in the state. The reward? A refreshing dip in the stream’s cool waters. Perfect for thrill-seekers, this trail offers a taste of Oahu’s wild side.
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