I work fairly often in the field in Kenya, and am frankly just shocked that they were offered a "walking safari". At the Ol'Pejeta Conservancy where I work, the rules are simple: stay inside the vehicle at ALL times. There simply isn't the option to get out of the car, EVER. Elephants are the same everywhere, and this is a terrible omission that ended in an unfortunately inevitable way.

If you've ever had a male bull elephant plan on getting frisky with your land rover, you'll never even consider a "walking safari", which (come to think of it) sounds like a monumental recipe for disaster. By the way, should you find yourself in that situation (in a car), don't drive away -- rev the engine as loudly as you can and try not to soil yourself.