Lanikai Pillbox Trail
The Lanikai Pillbox Trail, also known as the Ka'iwa Ridge Trail, is a short yet rewarding ridge hike above Lanikai Beach. This popular sunrise hike offers panoramic views of the Mokulua Islands, Kailua Bay, and the Ko'olau Mountains. Along the way, hikers pass two historic World War II-era bunkers (“pillboxes”) perched on the ridgeline. The trail is steep and exposed, so visitors are encouraged to bring water and hike early. Though the climb can be challenging, the views are some of the most iconic in Hawaii.
Lanikai Pillbox Hike (Ka'iwa Ridge Trail), Oahu
The Pillbox Hike in Lanikai (view panorama) × , also known as the Ka'iwa Ridge Trail, is a fun thing to do before or after visiting Lanikai Beach. The trailhead is easily accessible by car or if you come here with the bus (Route #70). It's a short hike to the top (about 20-30 minutes) and the views are amazing.
The trail overlooks the upscale neighborhood of Lanikai and its amazing white-sand beach, as well as Kailua and Waimanalo Beach (view panorama) ×. The two islands on the horizon are the Mokulua Islands, a popular kayaking destination.
Along the way are two military bunkers (pillboxes) that people use as lookout points. There isn't much shade on this hike and the trail can be slippery, especially if it has recently rained. It also has a few areas that are narrow (about 4 feet wide) and with a steep drop-off, so be cautious in these areas.
Key Features of Lanikai Pillbox Trail
- Scenic ridge hike: Offers sweeping views of Lanikai Beach, Kailua, Waimanalo, and the Mokulua Islands.
- Historic pillboxes: Two WWII-era bunkers serve as popular viewpoints and photo spots along the trail.
- Great for sunrise: The trail is a favorite for early morning hikers looking to catch sunrise over the ocean.
- Short but steep climb: Approximately 1 mile round trip, but includes sharp elevation gains and narrow ridgelines.
- Accessible from Kailua: Located in a residential area with street parking along Kaelepulu Drive (arrive early).
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Frequently Asked Questions
How difficult is the Lanikai Pillbox Hike?
It's a short hike (about 1 mile round trip), but it's steep with loose rocks and no shade. It's considered moderate due to the incline and terrain.
Is this a good sunrise hike?
Yes, it's one of Oahu's most popular sunrise hikes. The views of the rising sun over the Mokulua Islands are spectacular.
Where can I park for the hike?
There's limited street parking on Kaelepulu Drive near the trailhead. Arrive early, and be mindful of residential driveways and signage.
Are there any facilities on the trail?
No, there are no restrooms or water stations. Bring your own water and wear proper footwear for the steep terrain.