Oahu has hundreds of trails, but only a handful put you somewhere that stops you in your tracks. Here are 7 hikes with views that earn every step.
Most people fly to Oahu and spend the whole trip at sea level. That's fine. But if you're willing to sweat a little, the views from above this island are something else entirely.
These seven hikes cover a range of difficulty levels and locations. All of them reward you with perspectives on Oahu that you won't find from a beach chair or a tour bus.
Let's start with the one that sounds relaxing and absolutely is not. Koko Head is 1,048 steps up a decommissioned military railway track, near vertical in sections, fully exposed to the sun. It takes about 45 minutes up if you push it.
The view at the top covers Hanauma Bay, the coastline toward Diamond Head, and on a clear day you can see the islands of Molokai and Lanai offshore. Go early (the gate opens at sunrise). This trail is brutal in afternoon heat.
Diamond Head is the classic for a reason. The trail winds through a 300,000-year-old volcanic crater, up concrete stairs and through old WWII bunkers, and tops out at a lookout with sweeping views of Waikiki and the south shore.
It's a moderate hike, well-maintained, and doable for most fitness levels. Reserve your entry through the Hawaii DLNR website before you go. Walk-ins are not guaranteed.
This is an easy one, which makes it a good warmup or a solid option if you're hiking with less-experienced people. The paved trail winds up a headland on the southeast tip of the island and ends at a lookout above the Makapu'u Lighthouse.
Between January and May, you can spot humpback whales from this overlook. No joke. The views of the windward coast and the offshore islets of Manana and Kaohikaipu are worth the trip even without whales.
This is a short, steep climb above the neighborhood of Lanikai on the windward coast. The trail leads to two WWII concrete military pillboxes, and the views from the top look straight down onto Lanikai Beach and the Mokulua Islands offshore.
It's one of the most photogenic spots on the island, and it only takes about 30 minutes to reach. The trail is unofficial and unmarked in spots, but it's well-worn and easy to follow.
Most visitors skip the Aiea Loop Trail entirely, which means it's usually quiet. It runs through Keaiwa Heiau State Recreation Area and loops through a forest above Pearl Harbor, with clearing views of the harbor and Diamond Head in the distance.
The trail is well-shaded and cooler than most on the list. It's a good option for a slower morning hike when you want a break from the coast.
Manoa Falls is the easiest waterfall hike on Oahu and also one of the most lush. The trail runs through a dense valley with banyan trees, wild ginger, and bamboo, ending at a 150-foot waterfall. It's wet and muddy even in dry season. Wear shoes you don't mind getting dirty.
The hike itself is short and flat, but the ecosystem around you feels more like a jungle than a Hawaiian postcard. That's the whole point.
Kuliouou Ridge is one of those hikes that doesn't get enough attention. It starts in a quiet residential neighborhood in Kuliouou Valley, climbs through a beautiful ironwood forest near the top, and ends at a ridge with 360-degree views: Koko Head, Hanauma Bay, Waikiki, and on a clear day, the entire south shore laid out below you.
The final push to the summit is steep, but the ironwood section is shady and the views at the top genuinely deliver. This one doesn't appear on most tourist lists, so you'll likely have it to yourself.
Oahu's trails can be deceptively demanding. A few rules that apply across all of these hikes:
Even the best ridge hikes on Oahu have blind spots. The interior valleys, the full coastline, Sacred Falls deep in the Ko'olau backcountry, the scale of Pearl Harbor from above. These are things no trail on this list gets you to.
If you want to see the island the way a bird does, a doors-off helicopter tour covers ground that would take weeks of hiking to approximate. Magnum Helicopters flies the full circuit in about 50 minutes, including spots that are genuinely off-limits any other way.
These seven hikes cover the range of what Oahu's trails can give you. Some will push you, some are relaxed enough for a slow morning. All of them reward you with perspectives that are worth every step. Pick one, start early, and bring water.
Conditions change, and some trails require advance reservations. Check the Hawaii DLNR site before heading out, especially for Diamond Head. A two-minute search can save you a wasted trip.
