Tonight I had the opportunity to speak briefly to a group of runners at NikeTown about trail running. I know Don and few others have spoken to this group as well. One question that came up was trail access and how to find trailheads. At a presentation like this, that is a tough question to answer. I recommended picking up a hiking book that describes Oahu trails and told the group that I would also post something here.
Na Ala Hele has a great site for just this thing. Click here and have fun exploring Hawaii's trails.