Plaintiff was injured while riding an off-road motorcycle in an unpaved and unoccupied area of the desert, where defendant maintained a wildlife preserve which it surrounded by a cable fence to stop illegal dumping and off-road vehicles from disturbing the fragile habitat.  Plaintiff ran into the fence.  Held, defendant is immune from liability under Gov. Code 831.7, which immunizes public entities from liability if the plaintiff was injured while engaging in a “hazardous recreational activity.”  Section 831.7(b)(3) identifies off-road motorcycling as a hazardous recreational activity regardless of the purpose for the plaintiff’s going off road (here, allegedly to avoid traffic).  Plaintiff couldn’t fit his claim within the narrow exception under 831.7(c)(1) for injury due to failure to warn of some additional dangerous condition that was not an inherent part of the risk involved in the hazardous recreational activity.  The cable fence did not pose a risk of harm to those using the property with due care, but only to those like plaintiff who were going too fast to see the fence and stop in time before hitting it.  Hitting a fence or other obstacle while going at speed through unpaved territory is a risk inherent in off-road motorcycling.