Only 4WD vechicles are allowed down the steep road to Waipo Valley on the Big Island--but trekkers can walk down in about 15 minutes. At the bottom, several hikes are possible, including a beach stroll to a waterfall or backcountry trail. But the best hike may be up valley, into taro fields that are a glimpse into ancient times. The trail starts up a stream—you need to walk in water—but then transitions to a beautiful rural road. See Hawaii the Big Island Trailblazer for the deets.
