Ahupuaa O Kahana State Park
This park offers the true Hawaiian experience: a beautiful windward bay sits a short walk away from the Huilua Fishpond, a National Historic Landmark where restoration efforts are ongoing. There are rain-forest hikes past many local fruit trees, a hunting area for pigs, and a coconut grove for picnicking. The water is suitable for swimming and bodysurfing, though it's a little cloudy for snorkeling.