A short challenging climb and tricky fast descent.
This is a loop trail running along the ridges and overlooking central Oahu. There are beautiful views of Pearl Harbor and the Halawa Valley. Start at the top next to the restrooms and go in a counter-clockwise fashion. You can turn around at the end by the campground and ride the trail in reverse. Parts of the trail are bordered by cliffs, be careful. After rains the trail is dangerous and prone to erosion. Do not ride when wet.
How to get there:
From Honolulu International Airport, head West on H1 and exit at the Aiea off ramp (exit 13A). Take the second stoplight and turn right on Aiea Heights Drive. Follow Aiea Heights Drive all the way to the top (almost 3miles) until you reach Kea'iwa Heiau State Park. The trailhead is next to the restrooms at the top of the loop drive.
Do not ride when wet or raining. Beautiful views on nice days.