Oahu Hikes

Two trails worth your legs: a remote wildlife sanctuary at the island's western tip, and the summit every visitor climbs.

Updated October 2026  •  Oahu, Hawaii

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Westernmost Tip · State Park & Natural Area Reserve

Ka'ena Point

Hours
Daily ~6:00 AM – 7:00 PM
Admission
Free — no permits for day hiking
Distance
2.5–3.5 mi each way (~5 mi round trip)
Facilities
None — no shade, water, or restrooms

About this trail

Ka'ena Point is the westernmost tip of Oahu — a flat, hot, exposed coastal trail ending at a Natural Area Reserve sanctuary where Hawaiian monk seals and seabirds live year-round. It's free, open daily roughly 6 AM to 7 PM, and needs no reservations or permits for day hiking.

There are two ways in: from the North Shore side past Mokuleia/Dillingham Airfield where Farrington Hwy ends, or from the Wai'anae side at Yokohama Bay (Keawa'ula Beach) where the road ends, hiking north. The trail runs 2.5–3.5 miles each way — about 5 miles round trip — with no shade, no water, and no facilities. Start before 8 AM.

The wildlife is the payoff: monk seals — give them 50+ feet, they're federally protected — Laysan albatross and shearwaters year-round, and humpback whales offshore in winter and early spring. Don't swim (rocks, surf, currents — no lifeguards), and leave nothing visible in your car: break-ins are reported at the trailheads.

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Honolulu · State Monument

Diamond Head

Hours
Daily 6:00 AM – 6:00 PM (last reservation ~4:00 PM)
Admission
$5/person non-residents + $10/vehicle (residents free with ID)
Reservations
Required for non-residents — up to 30 days ahead
Trail
0.8 mi each way, 560 ft gain, ~1.5–2 hrs

About this trail

Diamond Head State Monument is Oahu's most famous hike — a 0.8-mile trail climbing 560 feet through a 225-foot entry tunnel and steep stairs to a summit with panoramic views of Honolulu and Waikiki. Allow 1.5 to 2 hours round trip.

Non-residents must book ahead: entry is $5 per person plus $10 per vehicle parking, reserved online through the Go State Parks Hawaii site up to 30 days in advance — no reservation, no entry (except Hawaiʻi residents with valid ID, who enter and park free without one).

Hours run 6:00 AM–6:00 PM daily with the last reservation slots around 4:00 PM — book an early slot to beat the heat and the crowds.

Check current requirements before you go: the state has adjusted the reservation system before and can again. Official info at dlnr.hawaii.gov.

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