Aiea Loop Trail

The Aiea Loop Trail is located within the Keaiwa Heiau State Recreation Area on Oahu. You'll find free parking and restrooms conveniently available at the trailhead.

No, there are no entrance fees or permits required to access the Aiea Loop Trail or the Keaiwa Heiau State Recreation Area. It's free for public use.

The main gate for the Keaiwa Heiau State Recreation Area opens at 7:00 AM and closes at 6:45 PM. It's recommended to start your jog or hike before 4:00 PM to ensure you complete the loop before closing.

The trail features varied terrain, including both smooth sections and technical, slippery areas. You'll encounter gentle slopes, gradual uphill climbs, and segments along the ridgeline. Be prepared for exposed tree roots and potentially muddy conditions, especially after rain, which can make parts of the trail very slick. Sturdy footwear is highly recommended.

While rated easy to moderate, the trail still requires good fitness for a moderate run. The elevation gain is gradual, making it a good trail running option on Oahu, but beginners should be prepared for varied surfaces, including potentially muddy and root-filled sections.

Joggers can enjoy lush, emerald scenery with a vibrant canopy of trees like lemon eucalyptus and native koa. The trail offers panoramic views of the Koolau Range, the H-3 Highway, Halawa Valley, Oahu's southern coastline, Pearl Harbor, the Wai'anae Range, Honolulu, and Diamond Head. Don't miss the scenic overlook about halfway through, providing excellent photo opportunities and a bird's-eye view of the H-3 Freeway.

Keep an eye out for native bird species. Occasionally, you might even spot wild pigs along the route.

Yes, the trail is dog-friendly, but your furry companion must be kept on a leash at all times.

The trail can be enjoyed year-round. However, be aware that conditions can be very muddy and slick after rain, so checking the weather beforehand is advisable. Starting earlier in the day is also recommended to avoid the afternoon heat and ensure completion before the park gates close.

Yes, the trail passes by historical sites, including remnants of a B-24 bomber that crashed in 1944. The adjacent Keaiwa Heiau is an ancient Hawaiian temple with cultural significance, believed to possess healing powers. You'll also encounter a View of Halawa Valley and H3 Highway and a Viewpoint - Pearl Harbor.

Yes, while the primary route is the Aiea Loop Trail itself, sections of this route also pass through parts of the Kalauao Falls Loop Trail and the Aiea Ridge Trail.