Located in Hawaii, the hiking in Oahu offers a half-dozen good hiking route options. The best Oahu hiking based on popularity are considered to be Kahana Valley State Park, Ka ena Point State Park, Mariners Ridge Trail - Kaluanui Ridge Trail, Diamond Head Crater Trail, and Haiku Trail. For a detailed trail description and printable trailhead map, just select a Oahu hiking trail below.
Northwest of Honolulu and north of Makaha on Oahu, the 800 acre Ka'ena Point State Park has a 2.7 mile one-way trek along a volcanic coast past tidal pools and stone arches. It rolls through sand dunes and along jagged cliffs of the coastline. There are brilliant sunsets from the point itself, near the lighthouse.
Northeast of Honolulu on Oahu, the Haiku Trail climbs 2,000 feet up through forest on the slopes of the Koolau Mountain range. There are 3,500 metal steps built in the lush cliff heading up to a vista of the Haiku Valley.
South of Waikiki in Diamond Head State Monument on Oahu, the Diamond Head Crater Trail is a 1.6 mile round trip route with 560 feet of climbing. The Diamond Head Crater Trail winds up the inside of an extinct volcanic crater to the summit. You'll need to pass through a 225 foot tunnel on the way to the top.
Northeast of Honolulu on Oahu, the Pali (Maunawili) Trail is an easy 11 mile one-way trek along the windward coast. The flat route is well-marked. It passes through forest on the lower slopes of the Koolau Mountain range.