The special regulation section above the Johnsondale Bridge holds the native Kern River Rainbow Trout. The subspecies has been extirpated in the Kern river from the Johnsondale bridge downstream. Fighter Jets train above the canyon and provide a little aerial show.
Check in at the local fly fishing shop in Kernville to check the latest status, then continue up the 20 mile stretch of Mountain Hwy 99 until you cross the Johnsondale Bridge. Park, pack, then begin your 30-45 minute hike up the trail before setting your rod.
After you're finished, stop by the Kern River Brewing Company for a hot meal and a cold beer.