Mud is lame. Many people don't consider that offroading. If you want to call it mudding thats fine, but dont' confuse it with what I like to do.
From the pics it looks like there's some light rockcrawling there. Thats really my favorite thing. Wear a seatbelt, dont hang your arm out the window, keep your head away from the window / doorpost

Its a blast though, more fun than an amusement park!
I also like trail rides though and sometimes there you still have to go through some muck. Here's the only shot I could find real quick from that. I am hanging a wheel in the air though

(sorry nick have to leech your bandwidth

)
http://www.flawlessfotos.com/jeepin/attica102801/images/DSCN0052.jpg